But the biggest development in the seas was the appearance of whales in the mid- to late Paleogene. The huge animals evolved from land mammals that took to the seas. Meanwhile, smaller reptiles ...

Two new studies led by Museum researchers shapes our knowledge about the origins and scope of fish biofluorescence—the flashy ...

What you need to know first — Why did some animals survive the Cretaceous–Paleogene (K–Pg) mass extinction event while others got wiped off the face of the Earth? Scientists have long ...

The shape of some teeth from Cretaceous animals suggests that the herbivores ... it marks the boundary between the Cretaceous and Paleogene periods; the "K" is from "Kreide," the German word ...

After living for millions of years, the dinosaurs faced a pretty disastrous end when a HUGE meteor hit Earth. Now, all these ...

At that point, as the Cretaceous period yielded to the Paleogene, it seems that all nonavian dinosaurs suddenly ceased to exist. One of the most well-known theories for the death of the dinosaurs ...

The scientists analysed samples of the rock layer that marks the boundary between the Cretaceous and Paleogene periods ... in which around 70 percent of all animal species became extinct.