WASHINGTON (AP) -- For years the mammals living in the era of dinosaurs have been thought of as tiny shrew-like creatures scurrying through the underbrush. Now the discovery of a furry aquatic creature with seal-like teeth and a flat tail like a beaver has demolished that image.
Some 164 million years ago the newly discovered mammal was swimming in lakes in what is now northern China, eating fish and living with dinosaurs.
http://edition.cnn.com/2006/TECH/sci....ap/index.html