Between 280 and 200 million years ago, a group of animals evolved which would eventually give rise to mammals, including humans: the therapsids. They were first described more than 150 years ago, ...

“My preparator and exceptional fossil finder, John Nyaphuli, identified a small nodule that at first revealed only tiny ...

Learn how X-ray imaging revealed the first fossilized egg from a mammal ancestor, showing how Lystrosaurus reproduced 250 million years ago.

A remarkable new discovery is shedding light on one of the greatest survival stories in Earth's history, and answering a ...

Scientists discover the first fossil egg of a mammal ancestor, offering new clues to how Lystrosaurus survived extreme ...

For the first time, paleontologists have discovered a 250-million-year-old fossil egg containing an embryo ...

Scientists have definitively confirmed that the ancient ancestors of mammals reproduced by laying eggs. This is evidenced by ...

Add Yahoo as a preferred source to see more of our stories on Google. A reconstruction of a Lystrosaurus embryo within its partially preserved shell. Paleontologists discovered the specimen in ...