Scientists have discovered a potentially new subspecies of chimpanzee deep in the Congo, one that may hunt big cats like leopards and lions. They haven’t seen the chimps in action of this sort, but they’ve seen them with a leopard corpse (which jibes with the locals’ descriptions of their behavior) and have noted that they actually sleep in nests on the ground as well as in the trees, which would indicate that other big predators steer clear of them for some reason. (Via Andrew Sullivan.)
