Sloths, once largely ignored, have become a hot topic of scientific researchers. Sanctuaries and rehabilitation centers are also springing up, as development often displaces these gentle creatures. Filmed in Panama, Costa Rica and Colombia, this is a story of friendship between a journalist and the sloth she named Velcro and a network of people working to learn more about sloths in order to protect them.

Get an intimate look at what makes woodpeckers so special. Explore their unique abilities and intimate stories from around the world. Narrated by Paul Giamatti.