Mammals' best hope for survival through Earth's Pangea Ultima era could look something like the North African gerbil, he said — a small rodent that thrives in the harsh conditions of the Sahara ...

The early mammals in this study — like many during the Mesozoic Era — were small creatures much like rodents, shrews or moles. They also appear to have had similarly gray and brown coats.

The genomes of monkeys, bats, whales and many other mammals are helping scientists tackle big questions about physiology, evolution and one very famous sled dog. An African savanna elephant, an ...