The Devils Hole pupfish's natural habitat is a single water-filled hole in a cave in the Nevada desert. Its numbers at one point dwindled to just 35 animals. How does it manage to survive?
On Wednesday, John Hume, owner of the Platinum Rhino Project, launched an auction to sell off the 2,000-strong herd in an online sale that's starting at $10 million.
Orca moms spent precious resources feeding their fully grown adult male offspring. A new study finds that this may limit how many more young they produce.
The wide-ranging report found the number of Australian species listed as threatened had increased since the 2016 report.
At an animal sanctuary in the Congo, young students are learning why the gentle, endangered apes known as bonobos should be seen as a national treasure.
Growing wildfires have overtaken old-growth redwoods and endangered condor nests, but biologists say they could survive.
Scientists say parasites are important parts of ecosystems, but many are at risk of extinction. So, they're calling for a parasite conservation movement.
The government is calling on a New York federal judge to dismiss lawsuits alleging the group was formed illegally. But animal rights advocates want a ruling.
Prasenjeet Yadav wants his photos to make people care about the environment — whether it's grasslands vanishing in southwest India or windmills taking over a lizard's habitat.