Marine fossil specimens unearthed in northern Portugal are filling a gap in understanding evolution during the Middle Ordovician period. A clutch of marine fossil specimens unearthed in northern ...

This column is part of a series where Verge staffers post highly subjective reviews of animals. Up until now, we’ve written about animals without telling you whether they suck or rule. We are now ...

LAWRENCE -- A clutch of marine fossil specimens unearthed in northern Portugal that lived between 470 and 459 million years ago is filling a gap in understanding evolution during the Middle Ordovician ...

Over half a billion years ago, during the Cambrian geological period, life on Earth started to get a lot more interesting. Thanks to the rise in free oxygen generated mostly by photosynthesizing algae ...