We can't help but smile. Ah, sloths. Those Mona Lisa expressions. Their quirky love for being upside down. And the kind of chill attitude we all wish we had at times. Here they are in candid photographs in all their adorableness, living their best life in sanctuaries in Costa Rica. Captured by the photographer and all-around sloth expert Lucy Cooke, they're hanging in trees, lounging in hammocks and baskets, and cozying up n snuggly little piles. Plus fascinating facts: A sloth's coat is a perfect host for algae--this turns them green and allows them to camouflage in the trees! Printed in China on responsibly sourced paper.