"No matter what we do in nature, there will be winners and losers, but we are seeing a lot of losers." Scientists issue dire warning that 'half the tree of life' is dangerously close to extinction: ...

Paleontologists unearthed fossils in the Grand Canyon dating back more than 500 million years that offer a new look into a time when complex life emerged on Earth.

Soft-bodied Cambrian fossils found in the Grand Canyon reveals how early animals evolved complex feeding systems over 500 ...