[Ed. note: A good push, though, will usually topple 'em pretty easily. Especially if they're asleep.]
As if that weren't enough, the story is also not lacking in penetrating anthropological insight:
"I would imagine that Australopithecus women were uncomfortable during pregnancy in the same way that modern women often are," says Karen Rosenberg, a palaeoanthropologist at the University of Delaware, US.
— Larry, Attack Monkey, Light Reading