Sometimes, an animal that was thought to be extinct will show up somewhere remote, and we can rejoice that we have another chance to save it. From the prehistoric fish that experts thought had been ...

Researchers said the rare species “abruptly disappeared” from the region following an El Niño event. Now it is thriving.

The desert rat-kangaroo — a small marsupial species — was declared extinct in 1994. But, scientists believe it could be alive and “evading detection,” according to a new study.

Long before the first dinosaur hatched, Earth's ancient life was already thriving. There were bizarre sea creatures and lumbering plant-eaters that ruled prehistoric landscapes for hundreds of ...

Isolation allows creatures to thrive as their relatives perish due to the threats present on much larger landmasses ...