At some point in the deep past, humans may have come frighteningly close to disappearing altogether. Here’s what we know, ...

Millions of years of isolation have shaped Australia's extraordinary mammal fauna into species unlike anywhere else in the ...

Sometimes an animal long thought to be extinct reappears decades or centuries later, shocking scientists! Join Hank Green for a look at seven species that we thought were gone forever... but are back ...

Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are ...

"She had been in the lab and recognized how to identify fishes, and said that's something valuable that we have to preserve.” ...

There’s enough gloomy wildlife news out there, so here’s a refreshing shift: some animals have pulled off impressive ...

While the average person may believe we’re losing species faster than we can discover new ones, that may not be the case. A recent analysis hosted at the University of Arizona has researchers arguing ...

With only fragments of evidence and massive unexplored habitat, the saola may still exist despite a decade of silence.

PORTLAND, Maine — One of the world's rarest whale species is having more babies this year than in some recent seasons, but experts say many more young are needed to help stave off the possibility of ...

Most of the large animals that have walked the surface of Earth are no longer here. Why? Dan Mann thinks it’s because our recent climate has been too stable, at least when compared to the wacky ups ...

A California tiger salamander is photographed in a wetland in 2022 by officials from the Sacramento Fish and Wildlife Office. (File photo by Michael van Hattem/U.S. Fish and Wildlife Service) This ...

A group of German scientists tested the effects of a more acidic ocean on sharks' teeth and found that future generations of ...