baby slotTourists in Costa Rica recently witnessed a magical and elusive event—the birth of a three-toed sloth. Steven Vela, a guide with the company Canoa Aventura, spotted the brown-throated slothWhen orphaned baby sloths are hungry or adults lose their habitat, Yiscel Yángüez and Néstor Correa are on the case. They run an animal rescue center in Gamb...