In a fascinating study published in Current Biology, researchers have turned our understanding of arachnid evolution on its ...

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

Learn how the Grand Canyon used to be home to an ancient evolutionary competition that has since left behind a plethora of soft-bodied fossils.

Scientists still debate what drove the Cambrian explosion, but the most popular theory is that oxygen in the Earth’s atmosphere slowly began to increase about 550 million years ago, said Erik ...

During the Cambrian explosion, which played out in the coastal waters of Earth’s oceans about 540 million years ago, most animal body types that exist today emerged in a relatively short time ...

After Earth’s greatest extinction, it wasn’t just volcanic fury that kept the planet hot; it was the death of tropical ...

Half a billion years ago, a strange sea-dwelling creature called Mollisonia symmetrica may have paved the way for modern ...

Scientists still debate what drove the Cambrian explosion, but the most popular theory is that oxygen in the Earth’s atmosphere slowly began to increase about 550 million years ago, said Erik ...

Nick Strausfeld/Dept. of Neuroscience, University of Arizona - PHOTO: Illustration of what the Mollisonia animal would have looked like at the time it lived, more than 500 million years ago.

During the Cambrian explosion, which played out in the coastal waters of Earth’s oceans about 540 million years ago, most animal body types that exist today emerged in a relatively short time ...

During the Cambrian explosion, which played out in the coastal waters of Earth’s oceans about 540 million years ago, most animal body types that exist today emerged in a relatively short time ...