Researchers studying a 250-million-year-old fossil have found the first ever proof that mammal ancestors laid eggs, with the discovery also shedding light on a remarkable survival story. The fossil, ...

A remarkable new discovery is shedding light on one of the greatest survival stories in Earth’s history, and answering a decades-old scientific mystery. Lystrosaurus, a hardy, plant-eating mammal ...

Curious minds have asked the same question for centuries: Did mammals hatch from eggs? It might sound ludicrous given what we know about modern mammals. However, this was not the case for the ...

It was a time of catastrophic change. Most of life on Earth had been wiped out, global temperatures had increased dramatically, and the weather raged in extremes. That anything survived in this ...

“This fossil was discovered during a field excursion I led in 2008, nearly 17 years ago. My preparator and exceptional fossil finder, John Nyaphuli, identified a small nodule that at first revealed ...

(CNN) - Researchers said a fossil found in South Africa proves for the first time that mammal ancestors laid eggs. The fossil belongs to a tightly-curled embryo of a Lystrosaurus. The Lystrosaurus is ...