"To see this fossil species ... back in our waters is incredible." Fisherman stunned after catching 'dinosaur fish' thought ...

Lazarus taxa, where a species is declared extinct but later learned to be alive and kicking, is the reason people think the ...

A fish previously declared extinct has been released back into the wild in Australia. The olive perchlet, a small oval-shaped fish with large eyes, was considered extinct in Victoria, Australia, in ...

A team of researchers set out to find a tiny minnow everyone assumed was gone forever. They trekked to a remote river in eastern South Africa, cast their nets, and pulled up a dozen little fish that ...

A small, blue-gray fish that once gathered in loose schools along the rocky shores of the Galápagos Islands has become the ...

Discover 15 endangered species that haven't changed since the age of dinosaurs. See the rare photos of nature's survivors.

Researchers identified a new freshwater fish species in South Africa after years of genetic testing and analysis. Zoosystematics and Evolution Zoosystematics and Evolution A team of scientists went ...