An increase in Joshua Tree visitors has meant bad news for local mountain lions.

Faced with extreme drought, these flowers adapted. Scientists call it “evolutionary rescue," and say it's a hopeful sign for ...

A wave of new research is forcing paleontologists to reconsider a basic question about life on Earth: when did the first mass ...

The asteroid impact that wiped out the dinosaurs didn’t keep life down for long. New research shows that microscopic plankton began evolving into new species within just a few thousand years—and ...

WASHINGTON— The annual count of migratory monarchs who spend the winter in Mexico was released today and shows that the ...

Once-threatened koala populations in parts of Australia are showing surprising signs of genomic recovery, according to a ...

In 1999 hundreds of gray whales washed up along the west coast of North America. More in 2000. They lost an estimated 25% of their population. But then the whale population recovered and people moved ...

The tiny Amazon molly (Poecilia formosa) has always fascinated researchers because, according to the rules of evolution, it shouldn't have survived as a species, let alone thrive as a species for over ...

A new study reveals that for conservation efforts to be effective, all threats to wildlife must be considered together, not in isolation.

The Guam kingfisher was extinct in the wild. Through coordinated breeding, cultural consultation, and careful reintroduction ...