Scientists used AI to analyze 10,631 freshwater fish species and found that stable, connected rivers are critical for ...

A limestone quarry in Hunan province, China, has yielded more than 150 species dating back approximately 512 million years — ...

A search for a fish lost to extinction led to a brand-new species hiding in a South African river.

Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are nowhere to be found. From human activity to climate change, new animals ...

A visualization of Tiktaalik roseae, an extinct aquatic animal with fossils that shed light on the evolution of land animals from marine animals millions of years ago. Nobu Tamura via Wikimedia ...

Giant clams (Tridacna gigas), members of the family Tridacnidae and among the most striking inhabitants of tropical coral ...

Ancient sea organisms survived until a sudden extinction 550 million years ago, revealing what may be the first major mass extinction.

Wang Ding, the hydrobiological researcher who has led the protection of the endangered Yangtze finless porpoise, stands near some of the captive mammals at the Institute of Hydrobiology under the ...

From the Austin blind salamander to the type of catfish known as the toothless blindcat, seven species of aquatic wildlife in Central and South Texas and the Texas Hill Country help scientists keep ...