Paleontologists have affirmed the idea that mammals, an extremely diverse group that includes egg-laying monotremes, originated at least 208 million years ago, much earlier than some previous works of research suggest.
Scientists will begin excavation early next week of an ancient Wyoming sinkhole containing a rare bounty of fossil remains of prehistoric animals, such as mammoths and dire wolves, preserved in unusually good condition, researchers said on Thursday.
Species of plants and animals are becoming extinct at least 1,000 times faster than they did before humans arrived on the scene, and the world is on the brink of a sixth great extinction, a new study says.
Scientists lack proof that camels are the source of a deadly new virus that has killed 186 people in Saudi Arabia and should widen their hunt to other animals, veterinary experts meeting in Paris said.
A new breakthrough study, which has identified the key neuron that allows animals to walk, will come in handy while developing new therapies for patients with spinal cord injuries or other motor impairments.