An asteroid at the end of the Cretaceous Period ended the dinosaurs, but earlier smaller extinctions dramatically set the ...

But the Mesozoic Era, spanning over 180 million years ... Some species were insectivorous, while others ate plants. Though many cynodonts died out, a few lineages survived and gradually evolved ...

Catalogue of the Mesozoic Plants in the British Museum (Natural History). The Cretaceous Flora. Part ii., Lower Greensand (Aptian) Plants of Britain. By Dr. Marie C. Stopes. Pp. xxxvi + 360 ...

Some grew larger and specialized in eating plants—a trend that later led ... was the end of the Mesozoic Era. The planet was warm, and sea levels were high. As a result, large landmasses were ...

Lake sturgeon are a threatened species in Michigan, and fishing for them is illegal in most state waters. Anglers who accidentally catch a sturgeon must release it immediately and avoid handling ...

was the end of the Mesozoic Era. The planet was warm, and sea levels were high. As a result, large landmasses were flooded with seawater. That is why we find marine fossils in places like Nebraska. On ...

In the latest exchange, 205 prisoners of war have been returned from Russia and Ukraine, according to Moscow. The Kremlin's Ministry of Defence said the United Arab Emirates helped to mediate the ...