Add Yahoo as a preferred source to see more of our stories on Google. For the past 65 million years, mammals have thrived across nearly every corner of Earth. In this time span, they have shaped ...

Tiny mammals don’t get much attention next to elephants or whales, but their size gives them a surprising edge. These animals can squeeze into impossible places, survive on scraps, and avoid detection ...

If you were to encounter the northern pygmy mouse in the wild, you might not think twice about it. However, this little creature is unique — it's the smallest rodent in the world, according to ...