The first new dinosaur named from Madagascar in nearly a decade, Dahalokely tokana was a carnivore measuring 9-14 feet long. Its fossils were found in 90-million-year-old rocks of northernmost Madagascar, from the time when ...
Hippos spend lots of time in the water and now it turns out (or researchers argue), they are the closest living relative to whales. It also turns out, the two are swimming in a bit of controversy.
Two genes controlling a tissue protein may have played a role in the key period when fish shed their fins and became limbed land-lovers, a study published by Nature on Thursday said.
The first top predators to walk on land were not afraid to bite off more than they could chew, a University of Toronto Mississauga study has found.
Tiny 1,900 million-year-old fossils from rocks around Lake Superior, Canada, give the first ever snapshot of organisms eating each other and suggest what the ancient Earth would have smelled like.
How long have viruses been around? No one knows. Scientists at Portland State University have begun taking the first steps toward answering this question.
Tiny fossils that scientists have thought for decades were the embryos of the earliest animals ever found have turned out to be the remains of much simpler microbial organisms.
In comparison to modern birds, the prehistoric Archaeopteryx and bird-like dinosaurs before them had a more primitive version of a wing. The findings, reported on November 21 in Current Biology, lend support to the notion ...
Twice in the Earth's history, living creatures underwent astonishing growth spurts, and each time, new organisms emerged that were a million times larger than anything that had existed before.