The Sloth Sanctuary of Costa Rica just received their fifth baby sloth showing severe birth defects. This baby was found on Isla Uvita; a tiny island off the coast of mainland Costa Rica covering just 0.8 km². This uninhabited island was previously thought to be too small to support a viable sloth population, however the discovery of this little baby proves otherwise. This special little sloth was called Onesie: he has only one finger and one toe on each hand and foot. Unfortunately, Onesie is not an isolated case – the incidence of congenital disorders in the wild sloth population appears to be increasing, and we want to do something about it. Click here to help us!