Did mammals hatch from eggs? It might sound ludicrous given what we know about modern mammals. However, this was not the case ...

The small, plant-eating Lystrosaurus thrived post-extinction, while its predators suffocated to death. Its eggs played a ...

Researchers studying a 250-million-year-old fossil have found the first ever proof that mammal ancestors laid eggs, with the ...

Between 280 and 200 million years ago, a group of animals evolved which would eventually give rise to mammals, including ...

A remarkable discovery answers one of the greatest survival stories in Earth’s history—and a decades-old scientific mystery.

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

Researchers identified an early mammal ancestor whose eggs may have helped it survive the Great Dying 250 million years ago.

Mass extinctions have radically influenced the history of life on Earth. Will we eventually succumb to such a catastrophe? Perhaps, but, in her new book Scatter, Adapt, and Remember, io9 editor in ...

Detailed imaging of a 250-million-year-old fossil has revealed the first proof that the ancestors of mammals laid eggs. The ...

In the aftermath of Earth’s most catastrophic extinction event, one unlikely survivor rose to dominate a shattered world: ...

The little skeleton was curled so tightly it looked as if it had never really entered the world. For years, that mattered ...