Sealife guideSharks and rays: the secret lives of elasmobranchsMarine vertebrates

Last updated on 08/22/2025 at 10:42 PM
Elasmobranchs, such as sharks and rays, are very ancient cartilaginous fish. Their light and flexible skeletons make them highly agile in the water and their senses are remarkably developed: some can detect vibrations or electrical fields from a distance.
These animals play a crucial role in marine ecosystems by regulating prey populations and maintaining the balance of reefs and seagrass beds. Despite their often fearsome reputation, most elasmobranchs pose no danger to humans and are a testament to the richness of marine biodiversity.
The manta ray (Mobula birostris) is a cartilaginous fish
The manta ray (Mobula birostris) is a cartilaginous fish
Elasmobranchs are a subclass of cartilaginous fish, scientifically known as Chondrichthyes and include both pelagic and benthic species. Among them is the largest fish in the world, the whale shark, reaching up to 66 feet in length !
The whale shark is the largest fish at the surface of the globe
The whale shark is the largest fish at the surface of the globe
Discover sharks and rays
Basking Shark (Cetorhinus maximus)
Basking Shark
(Cetorhinus maximus)
Big skate (Raja binoculata)
Big skate
(Raja binoculata)
Black blotched stingray (Taeniura meyeni)
Black blotched stingray
(Taeniura meyeni)
Broadnose sevengill shark (Notorynchus cepedianus)
Broadnose sevengill shark
(Notorynchus cepedianus)
Eastern fiddler ray (Trygonorrhina fasciata)
Eastern fiddler ray
(Trygonorrhina fasciata)
Great hammerhead shark (Sphyrna mokarran)
Great hammerhead shark
(Sphyrna mokarran)
Small-spotted catshark (Scyliorhinus canicula)
Small-spotted catshark
(Scyliorhinus canicula)
Whale shark (Rhincodon typus)
Whale shark
(Rhincodon typus)

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Salpe géante (Salpa maxima)
Salpe géante
(Salpa maxima)