it was the Paleocene-Eocene Thermal Maximum, a 200,000-year period of rapid carbon release and global warming that turned Earth's oceans acidic and saw terrestrial animals suddenly get much ...

Get Instant Summarized Text (Gist) Fossils from the Eocene mudflats of Utah reveal four new ichnospecies, indicating diverse foraging behaviors of ancient waterbirds. These trace fossils ...

That might not sound like much, but it effected radical change for the sea, the land, and the animals that inhabit the planet today. The event is known as the Palaeocene-Eocene Thermal Maximum ...