Compared to many other species except marsupials, human babies aren't close to fully developed. It has to do with evolutionarily with infant brain size and the

Compared to many other species except marsupials, human babies aren't close to fully developed. It has to do with evolutionarily with infant brain size and the size of a woman's pelvis. Few other animals have such as a high mortality rate. Sheep, which are domesticated animals, are close in infant mortality rate to humans.