Seahorses- Silent, but deadly

by Matthew Norton

The sheer variety of animals in the ocean, from the size and shape of their bodies to the intricacies of their inner workings, never ceases to amaze me. But it also makes it impossible to admire every sea creature equally (no matter how hard we might try), leading everyone to have their own personal favourite, be it a singular choice or a limited selection. And I feel reasonably confident that it’s the outward appearance of a creature that captures the observer’s attention and guides their preferences. For some, it might be the impressive size of a whale, or the sharp teeth of a shark. For others it might be the number of legs on a crab, or the cute squidgy cushion-like body of a starfish. Or it might be the beauty of a smaller ocean wanderer that wins you over, such as that of the humble seahorse. 

The elegance of their upright posture, the delicacy of their movements, the fragility of their lifestyle among the habitats that provide them shelter (e.g. seaweed, seagrass, corals), many of which are vulnerable themselves, there’s just something effortlessly regal about a seahorse. And with at least 40 species known to science, with the smallest and largest being 2cm and 35cm respectively, there is a certain degree of variety in their form, function and the quirks of their design. 

Alas, good looks are of little value in the unforgiving machine that is natural selection (except, maybe, when one is trying to attract a mate). A meal is a male to the eyes of a larger fish, no matter how well presented it is, while the power of the waves and ocean currents are equally unlikely to care how pretty they are. And considering their generally small size and lack of any apparent defences, it seems utterly illogical that seahorses could survive at all. But really, they’ve just evolved in a different way to many other fish. 

For example, it’s the dorsal fin of a seahorse that propels them forward, fluttering at a rate of 30-70 times per second (not too dissimilar to a hummingbird in flight). Their pectoral fins meanwhile, are positioned on their head but otherwise fulfil their expected function of steering the seahorse as required (imagine steering yourself with your ears). And their caudal fin (i.e. their tail fin) hardly exists as a fin at all, instead taking the form of grasping tail for holding onto coral branches, seagrass blades, or whatever anchor point is to hand. 

All in all, seahorses can swim, but they’re so incredibly slow that sudden bursts of speed towards prey, or away from predators, are not viable options. Instead, they rely on being difficult to find, applying camouflage and choosing their habitats wisely. The pygmy seahorse (Hippocampus bargibanti) does a particularly fantastic job at blending in with polyps of certain gorgonian corals by matching their pink colour palette and producing bumps in their skin and maintaining unusually stunted snouts to better resemble of the texture of their habitat. The aforementioned grasping tails also do their part, keeping the seahorse from accidentally drifting out of cover (where they may be snapped up with ease). Many animals could only maintain such a tight grip on an object for so long before it starts hurting and inflicting mild damage to their grabbing appendage of choice (e.g. blistered skin at the base of your finger from lifting weights). But seahorses scarcely suffer this inconvenience, thanks to their bony segmented armour which, in addition to providing some protection from predators, works to limit any damage to the tail from prolonged gripping and twisting. 

Naturally, a seahorse cannot hide and wait forever. Soon enough they’ll need to satisfy their voracious appetite for tiny crustaceans, such as copepods, shrimps and amphipods. They have little choice in the matter, given how quickly food passes through their digestive system on account of them having no proper stomach. To work around this glaring omission, they digest their food within the intestines and substantial quantities of goblet cells (often used to produce and release mucus) with acidic properties that make them an acceptable substitute for stomach acid and enzymes. That said, the lack of a dedicated stomach still renders seahorses as rather inefficient when it comes to processing their food and absorbing the nutrients contained within. Especially in their first days after hatching, when their digestive system (such as it is) is functional, but not yet fully developed. 

Nevertheless, seahorses are very capable of capturing the sheer quantity of food needed to compensate for the limited sustenance they get from each meal. In fact, they often achieve hunting success rates of 90% or more, ranking them among nature’s most successful hunters (by that metric). An especially incredible feat when one considers the rapid reflexes that many of their prey are capable of. Copepods for instance, can react to a disturbance within 2-4 milliseconds, sometimes achieving escape velocities of over 500 body lengths per seconds (that would be the equivalent of a six foot tall human accelerating to over 2,000 miles per hour in the blink of an eye). 

You would think that these tiny crustaceans would run rings around a slow and steady seahorse. But it’s their slowness, combined with bodies built for stealth, that allow seahorses to approach their targets without raising the alarm. The shape of their head is also built in such a way that it barely causes a ripple in the water, while their eyes move and rotate independently of each other, allowing seahorses to lock on to a target without needing to turn or jerk suddenly. When done right, their prey will have nothing to guide their evasive actions, assuming they detect the need to evade in the first place. 

This is essential for seahorses to make that final catch, which they do using a technique called “pivot feeding” where they rapidly tilt and lunge their head (usually with an upwards swing) to align their prey with their jaws whilst simultaneously applying suction. It’s only effective at a very short range and must be done without any real assistance from their jaws (which are fused open) as they capture their prey whole. But once a seahorse closes that distance, through expert stealth and discipline, there is little chance of escape. 

And if it’s a male seahorse on the hunt, he might not be eating just for himself. Ask anyone to give you a fact about seahorses and they’ll likely resort to reminding you that it’s the fathers who carry the babies and eventually give birth, an incredibly rare occurrence among the 150+ times that live birth has evolved in vertebrate animals (cue the collective moan for males not doing the heavy lifting more often). To achieve this particular form of procreation, the offspring are carried within a dedicated brood pouch, in which there are multiple layers for attending to their needs. Specifically, there are two inner layers for delivering nutrients, disposing of waste and keeping the oxygen flowing in. Meanwhile, the two outer layers protect the babies from many of the hazards of the outside world, such as pathogenic (i.e. disease causing) bacteria. Similar to the mammalian placenta, the brood pouch will go through changes during the course of the pregnancy (e.g. get thinner and spout multiple blood vessels) which, depending on the species, can last between ten days and six weeks, followed by hours of intensive labour as hundreds of tiny new-borns are thrust into their brave new world. The father meanwhile, resets his machinery and is ready to begin the whole process again within 24 hours. 

The making of the babies is a decidedly more tender affair, involving courtship dances and faithful monogamous pairing before they get down to business. To ensure this kind of fidelity, each pair must be able recognise each other, which is not always easy in a world where visibility is hardly a reliable commodity and there are other seahorses of the same species (not to mention the long periods they spend apart). Fortunately, they appear to rely on olfactory cues (i.e. smell) as the critical means by which they can find and recognise each other. 

Curiously though, if we can get a good look at a seahorse’s coronet, the crown-like structure on their head, we can use it as an aid for identifying the species of seahorse and as a sort of fingerprint for recognising individuals (similar to the patterns and scars on whales and dolphins). From a research ethics perspective, it’s certainly preferable to applying tags, chemical markers, or any other form of manual handling. Not only would the latter techniques cause undue stress to each seahorse, it might also cause them to miss their romantic rendezvous if timed at the wrong moment, which they may find difficult to explain to their partner. 

Assuming the seahorse pair are reunited and are able to conduct their courtship dance without incident, they will eventually align themselves so that the female can insert her “ovipositor” into a specialised pore on the male’s body, through which the eggs rush into the brood pouch and are fertilised. Job done. 

The seemingly unlikely success of seahorses, in matters of both love and war, is not a fluke either, with their closest relatives, pipefish and sea dragons, sharing many of the same attributes. These include their rigid bodies, fused snouts and a male pregnancy (although sea dragons and certain pipefish will carry their babies under their body instead of a dedicated brood pouch). Not to mention the discovery of seahorse fossils that are at least 13 million years old, while the wider family (which seahorses, pipefish and sea dragons belong to) has been around for at least 50 million years. It just goes to show that success takes many forms beyond sheer size and strength.

From a human perspective

I’m going to be honest, I had an ulterior motive for writing this article about seahorses. And it’s so I’d have the excuse to include this short excerpt from my upcoming debut novel Shark On A Train: An Oceanic Thriller: 

“One suspected shrimp paused in between jumps, by a thick bundle of seagrass. A mistake made fatal when a seahorse emerged from the ether and snapped up the creature whole. Even Kate was caught by surprise by the seahorse’s mastery of stealth. Their delicate appearance and regal posture made this fish an unassuming hunter, a contradiction employed with deadly efficiency and precision as it lurched into striking distance without betraying a single ripple in the water.”

There is a wider significance behind this passage, which you can read for yourself (when the book is finally published).

Admittedly, I am far from the first person to introduce seahorses to the world of fiction. Their influence ranges from “Storm”, Aquaman’s faithful steed since the 1960s, to the flying “Aquis” robots that have been shooting projectiles since Oil Ocean Zone from Sonic The Hedgehog 2. But my favourite example has to be “Fish Out Of Water”, a series three episode of Bojack Horseman, during which the titular horse actor goes from promoting a film at an underwater film festival to trying to bring a baby seahorse home after they are accidentally left behind on an underwater bus. Like any newly mobile child, the young fish (who somehow has legs) boisterously bounces from one hazard to the next as Bojack strains and struggles to keep up and keep them from getting hurt. A task made even more difficult by his inability to speak to anyone through the domed helmet that’s keeping him from drowning. Naturally, the underwater setting makes me a little biased in the episode’s favour, but it’s still fantastic viewing in its own right. Disclaimer! Bojack Horseman is an animated series for adults. Please don’t allow any children to watch it based on the wholesome storyline described above. 

Other seahorse ventures into popular culture take a more factual approach, such as the children’s book “Mister Seahorse” (first published in 2004), which tells the story of a ‘male mother’ seahorse as he meets fathers from other fish species, each caring for their young in different ways. One of them is Mr. Stickleback, an excellent example given that it’s male three-spined sticklebacks (Gasterosteus aculeatus) who construct the nests, defend their territories and provide all the parental care once the females have deposited the eggs. The latter duties include generally maintaining the nest, fanning the eggs to keep them supplied with oxygen and protecting the eggs and newly hatched fry from harm, even chasing after those who stray too far from the nest (thus exhibiting the same survival instincts of the average toddler). This level of paternal dedication makes it all the more embarrassing that I glossed over most of these details when I published an article about sticklebacks back in 2018. 

Sometimes, there doesn’t need to be an actual seahorse involved, as evidenced by the “Mister Seahorse” trope in TV and film, whereby a male character is able to get pregnant through various means, such as magic, body swapping technology, alien biology (cross-breeding on an extra-terrestrial level may not go the way we expect), or love simply finding a way. For example, during the second series finale of Red Dwarf the crew accidentally cross over into a parallel world and Dave Lister ends up sleeping with his female counterpart, only to then discover who does the childbearing in that particular reality. A more earthbound example can also be found in the 1994 film “Junior” starring Arnold Schwarzenegger (alongside Danny Devito and Emma Thompson) as a scientist who agrees to test his own drug for preventing miscarriages, eventually carrying the baby to term. 

Going back much, much further than the 1990s, we see that seahorses have been making their mark on mythologies for millennia, appearing in 6,000 year old cave drawings in Australia (albeit of rainbow serpents borrowing seahorse features) and the quartet of half-horse, half-fish “Hippocampi” who pulled Poseidon’s golden chariot, giving real machismo to the Greek god of the sea. Even in death, there was some desire for seahorse imagery, such as the paintings on the coffins and tomb walls that were tracked back to the Phoenicians and ancient Egyptians. Naturally, such imaginings are going to be subject to interpretation and artistic licence, especially when one considers their symbolic value to different cultures and in different contexts. That said, there are some artefacts that bare more accurate recreations, such as the elegant seals and jewels once crafted by the Minoans, a bronze age civilisation that once resided on the island of Crete in the Mediterranean (sometimes depicting seahorses with incredible accuracy for the time). 

But few artefacts, featuring ancient seahorses, have caused controversy in the modern day quite like “The Mildenhall Treasure”. The story behind its discovery proved so compelling that it inspired famous children’s author Roald Dahl to write a non-fiction account of what had occurred (simply called “The Mildenhall Treasure”). 

During the summer of 1942, a ploughman by the name of Gordon Butcher (with whom Dahl had conversed) made an incredible discovery whilst working a field approximately 20 miles north of Cambridge, United Kingdom. At first, he thought his tractor had hit a stone, or a tree root hidden within the frozen soil, but it turned out to be an ancient Roman dish (subsequently referred to as the “The Great Dish”) made of silver. Upon this dish, was a sculptured scene of Neptune (or possibly Oceanus, a lesser known sea god) surrounded by a boisterous party with wine and sea nymphs riding a variety of sea creatures, including seahorses. It’s a tenuous connection, but the drama of what happened next was too good to omit. 

Butcher immediately alerted his employer, Sidney Ford, of the find and together they unearthed a total of 34 silver artefacts, including goblets, bowls, spoons and another large dish. Time and dirt had taken its toll on the find, with each item being more green than shining silver, at least enough for Ford to reportedly dupe Butcher into believing the find was worthless and allowing him to take possession (an incoming snowstorm likely rushed Butcher into making a decision). This was particularly devious deception when one considers that under UK law (at the time) any silver or gold discovered in the ground was considered “treasure trove” and automatically the property of the crown. If Butcher was aware of the significance of the haul, he could have turned it over himself and received enough compensation to make him a millionaire (even more in today’s money). 

Instead, the treasure remained Ford’s property for around four years, during which he worked to polish and restore the items. Then a visiting archaeologist noticed one of the silver spoons sitting on his mantlepiece and the artefacts were acquired by the proper authorities soon thereafter. During the court case that followed, Ford claimed he thought the pieces were made from pewter, a metal alloy that was also used in Britain during Roman times and which was mostly made of tin, mixed with other metals such as copper and lead. Unlike silver, pewter was not considered “treasure trove”.

The case was ultimately settled with the entire haul being acquired by The British Museum, who paid £1000 each to Butcher and Ford as a goodwill gesture. But further doubts and conspiracy theories soon followed, with some suggesting that the testimonies given by both Butcher and Ford were inconsistent, while others suggested the haul was secretly discovered overseas and relocated to Britain during a covert wartime operation. Archaeologist Richard Hobbs even went as far as looking over old weather reports and carrying heavy buckets of sand to confirm there were no practical flaws in the official story behind the treasure’s discovery. Even so, the name of haul has also provoked dispute in recent years, specifically from 2019, when the old Mildenhall Parish in Suffolk was split into the new Mildenhall Parish and the newly designated West Row Parish. With the treasure’s discovery site being within the latter parish, a demand to rename it to reflect this bureaucratic adjustment swiftly followed. It seems people just can’t stop arguing over this treasure.

Unfortunately, our fascination with all things seahorse has also led to the animals themselves being exploited and monetised where there is sufficient demand, particularly in the aquarium trade, the ‘curio’ trade (i.e. as decorative trinkets) and the traditional medicine trade. The latter has long, deep roots in certain cultures, with some of the earliest medical texts hinting that seahorses could be used to treat a variety of medical complaints, including skin irritation, baldness, insomnia, asthma, arthritis and a flagging libido. The latter reminded me of a 2002 episode of The Simpsons (“A Hunka Hunka Burns in Love”) when an infatuated, but exhausted Mr. Burns resorts to a secret aphrodisiac derived from a species who “only existed for three weeks in the 16th century”. It may be an obvious exaggeration, but the sentiment behind this line has remained disturbingly relevant in the 24 years since this episode aired.

For the seahorse trade, the looking glass moment came with a 1996 report that began to expose the sheer extent of the practice, originally revealing 32 participating countries before follow-up studies pumped that number up to 80. This prompted all seahorse species to be included in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) in 2004. Combined with the national level protections afforded to seahorses in some countries, such as the total ban on catching and trading seahorses under Schedule I of India’s Wild Life Protection Act (effective from 2001), you would be forgiven for thinking we’d have a handle on the situation by now. 

Alas, regulating trade and enforcing restrictions, or outright bans, on damaging practices can be a tricky beast with almost any fishery. Especially when it comes to animals who are often caught as bycatch through non-selective methods, such as drag nets and bottom trawling (which are incredibly damaging across the board). This makes it hard for otherwise compliant fishing vessels to avoid catching seahorses by accident; and for regulatory authorities to prove whether or not their crews are deliberately targeting the animals. The solution would seem to be stronger enforcement of the existing restrictions and better management of the fisheries as a whole. But this is only feasible when the authorities have the proper resources to fulfil this mandate, which is far from guaranteed in many places. And given the potential profits involved, many will find illegally trading seahorses to be worth the risk. One package alone, as discovered at a bus terminal in Tulcán, Ecuador in 2025, contained around 10kg of seahorses worth up to $30,000 on the black market. With around 150 million seahorses being taken each year, you really start to get a sense of the issue. 

But similar to the shark fin trade, the consumer has the power to reject these products and really use that “the customer is always right” mentality. Sometimes, this encourages people to act like entitled little ********s, but on this occasion it can be used to cut off the demand and bring the extraction of seahorses down (at least to sustainable levels) while the relevant authorites (hopefully) get a better hold on the supply chain. At the same time, there needs to be support for fisheries to bring them on side and support their transition towards more sustainable fishing methods and practices. Leaving them behind with a diminished livelihood, or no livelihood, will achieve nothing but foster the kind of hostility that helps no one. Especially with seahorses facing other threats beyond direct exploitation, such as pollution and habitat destruction. Threats that will require local knowledge, scientific expertise and people from all walks of life working together. And in the end, no one really wants the seahorse’s beauty to be its ultimate undoing.

Sources

Osterloff. (n.d).  Are seahorses the ocean’s quirkiest fish? https://www.nhm.ac.uk/discover/are-seahorses-the-quirkiest-fish.html. Last accessed 16/09/2026

The Seahorse Trust. (n.d).  Sea Horse Facts https://www.theseahorsetrust.org/seahorse-facts/. Last accessed 31/08/2026

Fishbase. (n.d). Hippocampus reidi Ginsburg, 1933 Slender seahorse. https://www.fishbase.se/summary/Hippocampus-reidi. Last accessed 12/09/2026

The Marine Life Information Network. 2021. Short snouted seahorse (Hippocampus hippocampus). https://www.marlin.ac.uk/species/detail/1788. Last accessed 31/08/2026

Qu et al. 2025. Symbiosis with and mimicry of corals were facilitated by immune gene loss and body remodeling in the pygmy seahorse

Bart et al. 2017. Mating, birth, larval development and settlement of Bargibant’s pygmy seahorse, Hippocampus bargibanti (Syngnathidae), in aquaria

The Marine Life Information Network. 2007. Long snouted seahorse (Hippocampus guttulatus). https://www.marlin.ac.uk/species/detail/1891. Last accessed 08/09/2026

Yan et al. 2025. Seahorse‐exoskeleton‐inspired structure with linear‐to‐torsion transition property for low-frequency vibration isolation

Zhang et al. 2022. Versatile like a seahorse tail: a bio‐inspired programmable continuum robot for conformal grasping

Gemmell et al. 2013. Morphology of seahorse head hydrodynamically aids in capture of evasive prey

Claassens and Hodgson. 2017. Gaining insights into in situ behaviour of an endangered seahorse using action cameras

Woods. 2002. Natural diet of the seahorse Hippocampus abdominalis

Ofelio et al. 2019. Histochemistry of goblet cells and micro-computed tomography to study the digestive system in the long-snouted seahorse Hippocampus guttulatus

VIVO Pathophysiology. (n.d). Goblet Cells. https://vivo.colostate.edu/hbooks/pathphys/topics/goblets.html. Last accessed 15/09/2026

Bergert and Wainwright. 1997. Morphology and kinematics of prey capture in the syngnathid fishes Hippocampus erectus and Syngnathus floridae

Van Wassenbergh et al. 2011. An adaptive explanation for the horse-like shape of seahorses

Dudley et al. 2021.Structural changes to the brood pouch of male pregnant seahorses (Hippocampus abdominalis) facilitate exchange between father and embryos

Hickok. 2021. Male seahorses grow placentas to incubate their young. https://www.science.org/content/article/male-seahorses-grow-placentas-incubate-their-young. Last accessed 16/09/2026

Sokol. 2026. An unconventional love story. In The Marine Biologist: The Magazine Of The Marine Biologist Community. 39, 16-17. ISSN 2052-5273

Kloc. 2023. Seahorse male pregnancy as a model system to study pregnancy, immune adaptations, and environmental effects

Liu et al. 2025. Cellular and molecular mechanisms of seahorse male pregnancy

Han et al. 2017. Seahorses of the Hippocampus coronatus complex: taxonomic revision, and description of Hippocampus haema, a new species from Korea and Japan (Teleostei, Syngnathidae)

Freret-Meurer et al. 2013. Seahorse fingerprints: a new individual identification technique

Ocean Wildlife Photos. (n.d). Seahorse identification. https://oceanwildlifephoto.com/ocean-gallery/seahorses/attachment/seahorse-identification/. Last accessed 16/09/2026

Lin et al. 2021. Female lined seahorses (Hippocampus erectus) recognize their mates based on olfactory cues

Žalohar et al. 2009. Two new species of seahorses (Syngnathidae, Hippocampus) from the Middle Miocene (Sarmatian) Coprolitic Horizon in Tunjice Hills, Slovenia: The oldest fossil record of seahorses

Wilson and Orr. 2011. The evolutionary origins of Syngnathidae: pipefishes and seahorses

Brownstein. 2023. Syngnathoid evolutionary history and the conundrum of fossil misplacement

Fandom. (n.d). Storm. https://aquaman.fandom.com/wiki/Storm. Last accessed 05/09/2026

Fandom. (n.d). Aquis. https://sonic.fandom.com/wiki/Aquis. Last accessed 05/09/2026

IMDb. (n.d). Fish Out of Water. https://www.imdb.com/title/tt5218434/. Last accessed 07/09/2026

Saffron Wiehl Art. (n.d). Azulejos Seahorse. https://www.saffronwiehl.com/products/azulejos-seahorse-size-a3?srsltid=AU7gw4WG9h9Z1Gkw485JiRYXFxXEDeL5NUyOaoNisPLCdjK7FVNvkGbb. Last accessed 16/09/2026

Jaggery. 2012. SS8177 : Seahorse pub sign, Porthcawl. https://www.geograph.org.uk/photo/2886385. Last accessed 16/09/2026

goodreads. (n.d). Mister Seahorse: Eric Carle. https://www.goodreads.com/en/book/show/631931.Mister_Seahorse. Last accessed 07/09/2026

Bell et al. 2018. Parenting behaviour is highly heritable in male stickleback

Stein and Bell. 2012. Consistent individual differences in fathering in threespined stickleback Gasterosteus aculeatus

TvTropes. (n.d). Mister Seahorse. https://tvtropes.org/pmwiki/pmwiki.php/Main/MisterSeahorse. Last accessed 07/09/2026

IMDb. (n.d). Parallel Universe. https://www.imdb.com/title/tt0684169/?ref_=tt_epspo_ep_6. Last accessed 07/09/2026

TvTropes. (n.d). Junior. https://tvtropes.org/pmwiki/pmwiki.php/Film/Junior. Last accessed 07/09/2026

IMDb. (n.d). Junior. https://www.imdb.com/title/tt0110216/. Last accessed 07/09/2026

Gill. 1985. Some observations on representations of marine animals in Minoan art, and their identification

Scales. 2009. Poseidon’s steed: the story of seahorses, from myth to reality

NHBS. (n.d). Poseidon’s Steed  The Story of Seahorses, from Myth to Reality. https://www.nhbs.com/poseidons-steed-book?srsltid=AfmBOorEthsYkujetvqR1rGcEtODtlTVRDaBDM-kHu645JzCx1yg_vrf. Last accessed 05/09/2026

Nugent. 2009. NS5864 : Clydeport Building. https://www.geograph.org.uk/photo/1109808. Last accessed 06/09/2026

McLean. 2022. Nine places around Glasgow where it definitely pays to look up. https://www.glasgowlive.co.uk/news/history/nine-places-around-glasgow-definitely-25476503. Last accessed 06/09/2026

Whelan. 2020. Controversy Erupts Over Mildenhall Treasure. https://www.ancient-origins.net/news-history-archaeology/mildenhall-treasure-0013344. Last accessed 05/09/2026

Hobbs. 1997. The Mildenhall Treasure: Roald Dahl’s ultimate tale of the unexpected? https://web.archive.org/web/20161009172853/https://www.thefreelibrary.com/The+Mildenhall+Treasure%3A+Roald+Dahl’s+ultimate+tale+of+the+unexpected%3F-a019353211. Last accessed 05/09/2026

Mildenhall and District Museum. (n.d). The Mildenhall Treasure. https://mildenhallmuseum.co.uk/collections/treasure/. Last accessed 05/09/2026

The Pewter Society. (n.d). About Pewter. https://pewtersociety.org/about-pewter. Last accessed 05/09/2026

West Row Parish Council. (n.d). West Row Parish Council Website. https://westrow-pc.gov.uk/. Last accessed 05/09/2026

TheGeorgieboi9. 2017. The Simpsons – Aphrodisiac. https://www.youtube.com/watch?v=pb8JH5lbQ1s. Last accessed 07/09/2026

IMDb. (n.d). A Hunka Hunka Burns in Love. https://www.imdb.com/title/tt0701044/. Last accessed 07/09/2026

Rosa et al. 2012. Seahorses in traditional medicines: a global overview

Kumaravel et al. 2012. Seahorses–a source of traditional medicine

Vaidyanathan et al. 2020. Catch and trade bans for seahorses can be negated by non‐selective fisheries

Vaidyanathan and Vincent. 2021. State of seahorse fisheries in India, nearly two decades after they were banned

Jain. 2021. Millions of seahorses caught as bycatch in Indian shores. https://india.mongabay.com/2021/07/millions-of-seahorses-caught-as-bycatch-in-indian-shores/. Last accessed 08/09/2026

Foster et al. 2019. Global seahorse trade defies export bans under CITES action and national legislation

Alvarado et al. 2025. From South America to Asia, seahorses vanish into trafficking pipeline. https://news.mongabay.com/2025/09/from-south-america-to-asia-seahorses-vanish-into-trafficking-pipeline/. Last accessed 08/09/2026

Save Our Seahorses. (n.d). The Seahorse Crisis. https://saveourseahorses.com/the-seahorse-crisis/. Last accessed 08/09/2026

The Seahorse Trust. (n.d). STOP THE CURIO TRADE CAMPAIGN. https://www.theseahorsetrust.org/conservation/stop-the-curio-trade/. Last accessed 08/09/2026

Image sources

Richard Ling from NSW, Australia. 2007. [CC BY-SA 2.0 (https://creativecommons.org/licenses/by-sa/2.0)]. https://commons.wikimedia.org/wiki/File:Hippocampus_whitei_2.jpg

Steve Childs. 2015. [CC BY 3.0 (https://creativecommons.org/licenses/by/3.0)]. https://commons.wikimedia.org/wiki/File:Hippocampus_alatus.jpg

MattSullivan from Boston, MA, USA. 2011 [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)]. https://commons.wikimedia.org/wiki/File:Lined_Seahorse-_Hippocampus_erectus_(6042886100).jpg

 Hans Hillewaert. 2012. [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/)]. https://commons.wikimedia.org/wiki/File:Hippocampus_hippocampus_(on_Ascophyllum_nodosum).jpg

Caparbio. 2011. [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)]. https://commons.wikimedia.org/wiki/File:Pygmy_seahorse.jpg

prilfish. 2015. [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)]. https://commons.wikimedia.org/wiki/File:Hippocampus_guttulatus_1.jpg

prilfish.2016. [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)]. https://commons.wikimedia.org/wiki/File:Seahorse_-_Hippocampus_guttulatus.jpg

Uwe Kils. 2005. [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/)]. https://commons.wikimedia.org/wiki/File:Copepodkils.jpg

Biodiversity Institute of Ontario. 2011. [CC BY 3.0 (https://creativecommons.org/licenses/by/3.0)]. https://commons.wikimedia.org/wiki/File:Artemia_franciscana.jpg

Angyal D, Chávez-Solís EM, Liévano-Beltrán LA, Magaña B, Simões N, Mascaró M (2020) New distribution records of subterranean crustaceans from cenotes in Yucatan (Mexico). ZooKeys 911: 21-49. https://doi.org/10.3897/zookeys.911.47694. 2020. [CC BY 4.0 (https://creativecommons.org/licenses/by/4.0)]. https://commons.wikimedia.org/wiki/File:Antromysis_cenotensis_(10.3897-zookeys.911.47694)_Figure_2_(cropped).jpg

Michael Marmach. 2022. [CC BY 4.0 (https://creativecommons.org/licenses/by/4.0)]. https://commons.wikimedia.org/wiki/File:Marine_amphipod,_Colomastix_no._J_24140.jpg

Elizabeth Haslam. 2009. [CC BY 3.0 (https://creativecommons.org/licenses/by/3.0)]. https://commons.wikimedia.org/wiki/File:Hippocampus_abdominalis,_apareamiento_(cropped_retouched).jpg

Miguel Mendez from Malahide, Ireland. 2012. [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)]. https://commons.wikimedia.org/wiki/File:Broadnose_pipefish._(7131953791).jpg

Benchill. 2006. [CC BY 3.0 (https://creativecommons.org/licenses/by/3.0)]. https://commons.wikimedia.org/wiki/File:Weedy_Sea_Dragon_Mooloolaba_Underwater_World.JPG

Apokryltaros. 2010. [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)]. https://commons.wikimedia.org/wiki/File:Tunjice_Hills_Hippocampus.jpg

Yannick8405. 2018. [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)]. https://commons.wikimedia.org/wiki/File:Azulejos_Seahorse_by_Saffron_Wiehl.jpg

Norbert Nagel. 2012. [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)]. https://commons.wikimedia.org/wiki/File:Seahorse_figure_on_a_balustrade_near_the_crater_rim_in_Fira_-_Santorini_-_Greece.jpg

Seahorse pub sign, Porthcawl by Jaggery. 2012. [CC BY-SA 2.0 (https://creativecommons.org/licenses/by-sa/2.0)]. https://commons.wikimedia.org/wiki/File:Seahorse_pub_sign,_Porthcawl_-_geograph.org.uk_-_2886385.jpg

Istolethetv. 2015. [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)]. https://commons.wikimedia.org/wiki/File:Storm_(21481348613).jpg

Dosseman. 2015. [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)]. https://commons.wikimedia.org/wiki/File:Antalya_Museum_Gigantomachy_Poseidon_in_winged_horse_drawn_chariot_attacks_a_giant_6562.jpg

Thomas Nugent / Clydeport Building. [CC BY-SA 2.0 (https://creativecommons.org/licenses/by-sa/2.0/)]. https://commons.wikimedia.org/wiki/File:Clydeport_Building_-_geograph.org.uk_-_1109808.jpg

Mariners67. 2017. [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)]. https://commons.wikimedia.org/wiki/File:Mariners_Lodge_Seal.jpg

I, Estel. 2007. [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/)]. https://commons.wikimedia.org/wiki/File:Mildenhall_treasure.JPG

Sharat Ganapati. 2005. [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)]. https://commons.wikimedia.org/wiki/File:Dried_Seahorses_for_Sale.jpg

Reinhold Möller. 2007. [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)]. https://commons.wikimedia.org/wiki/File:Beijing_Dong%27anmen_Dajie-20071019-RM-212636.jpg

All other images are public domain