Coelacanths are lobe-finned fish that were assumed to have become extinct around 65 million years ago, at the same time as dinosaurs.
However, a coelacanth was found off the coast of South Africa in 1938.
They are often referred to as "living fossils".
Coelacanths are unique fish with a number of unusual features.
They have a long, eel-like body, a fleshy dorsal fin, lobe-shaped fins, and a skull hinge.
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