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Jun 24, 2014 05:26 AM ET
Other than 3 being more than 2, what's the difference between a two-toed sloth and a three-toed sloth? The cute little creatures can't speak for themselves, so the job's up to Trace.
Jun 20, 2014 11:01 AM ET
Sure, we're all in love with the cuddly, takin'-it-easy sloths of today, but what did they look like in a land far, far back in time?
Apr 25, 2014 11:45 AM ET // Richard Farrell
Evolutionary adaptation keeps vital organs from crushing their lungs.
Mar 12, 2014 07:50 AM ET // Laura Poppick, LiveScience
These now-extinct swimmers had highly dense bones that facilitated their transition from land to sea by helping them sink to seafloors to graze.
Jan 28, 2014 09:26 AM ET
Moths and dung eating insects live on sloths, and they create algae on its body. The algae serves as a camouflage from predators, and also as a tasty snack! Trace hangs out and discusses how you might not want to hold a sloth anymore.
Jan 21, 2014 07:00 PM ET // Jennifer Viegas
Food grows right on the bodies of sloths, which could be the world's best recyclers.
May 31, 2013 09:30 AM ET // Jennifer Viegas
Sloths are so photogenic they have been recruited to serve as animal ambassadors for Suriname, a country in northern South America.