Serenella Quarello and Julie Colombet are back with a new, fun book of nonfiction about a little-known animal: the sloth!

French naturalist Buffon believed sloths were an "error of nature" that was doomed to disappear. And yet here they are, still around! Despite their slowness and the long, curved claws that "prevent them from walking," sloths live long and peaceful lives. What is their secret? Did you know that sloths sing when they’re in love? That they can fight on the ground? That the algae they feed on grows directly on their fur during the rainy season? And also that they're excellent swimmers?