Endangered Species

Australia declares 'war on cats'

Baby orca learns how to breach and can't stop leaping for joy

Newfound family offers hope for Earth's rarest ape

6 things to know about Earth's 6th mass extinction

U.S. grants new protections for captive chimpanzees

U.S. Coast Guard saves sea turtles tangled in trash

Why are saiga antelope dying in record numbers?

Giant sawfish have virgin births to survive

6 wild animals worth more alive than dead

New remedy helps bats survive white-nose syndrome

What is a saiga and why should we care about it?

Can energy companies save the sage-grouse?