These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

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 ...

The olive perchlet is a five to six centimetre fish and plays a key role in the ecosystem by eating tiny water insects, but the species was thought to have been wiped out from Victoria and South ...

A new study, published on May 21 in the journal Nature, has revealed surprising information about the origins of human teeth. Our teeth evolved from the piercing “body armor” of extinct fish, which ...

Newly discovered species of extinct fish shows striking similarities to unrelated modern-day predators, suggesting certain traits have emerged multiple times and remained consistent over hundreds of ...

In a world where new species are constantly being discovered, some creatures remain hidden in the depths of the ocean, defying our understanding of life itself. One of the most extraordinary examples?

The ivory-billed woodpecker, along with 22 other species of birds, fish, mussels and other wildlife, is set to be declared extinct and removed from the endangered species list, US wildlife officials ...

LANSING, Mich. (WLNS) — The Michigan Department of Natural Resources is trying to reintroduce a sacred fish that hasn’t been seen in Michigan waters for 90 years. The experts involved in the Arctic ...

For 162 million years, sturgeons have fended off everything they’ve faced. Now scientists are racing to save these living fossils. The white sturgeon is the largest freshwater fish in North America; ...