I've heard it time and time again that 'the early bird gets the worm,' but I know I'm not the only one who feels less productive the earlier I wake up. I won't deny that I'm not a morning person, but ...

Modern sloths hang out in trees, move at a slow pace and eat a vegetarian diet — but the same thing can’t be said for their extinct relative, Mylodon. This ancient ground sloth, which lived in South ...

A drowsy sloth fell asleep as he ate his breakfast at Texas’s San Antonio Zoo on February 6. The sleepy two-fingered sloth, named Sol, can be seen tucked into a corner of his habitat sleeping soundly ...