Body Hair
Non-human apes don’t need a tool to carry their infants in part because they have body hair for their infants to cling to but it’s more complicated than simply having body hair and a baby that can grasp it.
Big Babies
It’s not just that human babies are helpless at birth, it’s that they’re so huge, at least when we compare them to the size of other apes’ newborns. Fortunately we have all kinds of technology to help us carry them around. But how far back in history were our evolutionary ancestors dealing with these big babies?
