Why Do Sifakas Pogo?

Sifakas are the leaping lemurs you’ve seen before. They can travel upright on two legs, but they don’t really walk, they “pogo,” which is jumping to the side. Yeah, it seems easier to walk or run on two legs, but what do I know? I can’t leap from tree-to-tree the way they do. -via Laughing Squid

Source: neatorama