This video of a group of sloths hosting a karaoke night in the rainforest is the most soothing and melodious thing I've ever heard. Their slow rendition of Whitney Houston's "I Will Always Love You" is giving me chills! My pet lizard heard the singing and tried to join in by puffing out its throat, attempting a reptilian rap that didn't quite hit the right notes. On a different note, a snail can sleep for three years straight – that's some serious beauty rest!