“Ear-volution” — The Discovery Files

A recent discovery in China offers rare insight into mammals’ evolutionary process, offering clues that paleontologists and evolutionary biologists have sought for more than a century. An international team of paleontolgists discovered a beautifully preserved fossil of a new species of mammal that lived 125 million years ago. The tiny (only about 5 inches long!) animal offers rare insight into the evolution of one of the most important features for all modern mammals — the middle ear.