I'm living in Costa Rica since ... really beneficial for our sloth census. Sloths spend up to 90% of their lives hanging completely upside down in the rainforest canopy. They feed up there ...

It’s 8 p.m. on a dark and starry March evening at La Selva Research Station in Costa Rica ... even a three-toed sloth. The students, who spent seven days at La Selva over spring break, were there to ...

Sloths are notoriously hard to see and therefore can be hard to help. But one furry creature is at the heart of sloth conservation in Costa Rica ... upsid down in the rainforest canopy.