Is our universe all there is, or could there be more? Is our universe just one of a countless multitude, all together in an all-encompassing multiverse? And if there are other universes, what would ...

Add Yahoo as a preferred source to see more of our stories on Google. ABC News' Linsey Davis speaks with the Reeve family about the new documentary "Super/Man: The Christopher Reeve Story," which ...

Get up close with one of nature’s most fascinating creatures in this intimate close-up footage of a porcupine. Watch as it nibbles on leaves, climbs branches, and reveals its unique quills up close.

Cats are one of the most popular house pets to own around the world. Independent, cuddly, and vocal, most house cats bring joy and entertainment to the average family. But how long do house cats live, ...