A new study suggests that half the world's fastest cats will be gone in 15 years—and that's being optimistic.
The organization's controversial approach to population control in D.C.'s Rock Creek Park
Misguided environmental theory threatens the survival of the grizzly
The platform mistook a disabled veterans fundraiser for a political ad.
This is what preparing for wildfires looks like.
A new preserve in California will save 24,000 acres of land from development.
A clever experiment reveals how fake traffic noise drives songbirds out of forests and harms the ones that stay behind.