Fossil egg discoveries, including one in Antarctica, show dinosaurs and marine reptiles laid soft-shell eggs

Photos: Ancient finds
This artist's illustration shows a young Purussaurus attacking a ground sloth in Amazonia 13 million years ago.
Hide Caption
1 of 158

Photos: Ancient finds
This bundle of bones is the torso of another marine reptile inside the stomach of a fossilized ichthyosaur from 240 million years ago.
Hide Caption
2 of 158
