These creatures are fascinating for many reasons but one reason is that they poop once a week! I highly recommend the David Attenborough series "the Life of Mammals." In that series, there was a sloth segment that showed David next to a sloth climbing down a tree...well, you can see for yourself below. The part to which I'm referring is at about 1 min 15 sec but the whole thing about the sloth is quite interesting.
For interesting sloth facts check out: http://www.brazilianfauna.com/sloth.php
