A pup named Valentina was returned to a shelter just before the holidays, and her heartbroken face has gone viral on social media. "Valentina was returned. She doesn't understand why," reads the ...

A giant centipede’s many wriggling legs might be creepy. But the pair of legs not used for walking may be the most frightening. More than 430 million years ago, the two legs nearest the mouth evolved ...

(Each year, TIME recognizes 100 companies that are revolutionizing the world. Apply now to have your company reviewed by our editors.) At the end of 2012, T-Mobile US was not in a good place.