Very Old Mammal Discovered

Here's an interesting and exciting scientific discovery...a new and very old species of mammal that may have lived before the dinosaurs...

By Jennifer Viegas Wed., July 29, 2009 The world's first known tree-dwelling vertebrate has just been identified, according to a new study. The tiny, agile animal lived 30 million years before the first dinosaurs and was a distant relative of mammals, including humans.