When baby animals are born they are either left to survive alone or they are born and can pretty much walk and fed them self not long after.
Yet human babies need caring for pretty much all their life by their parents.
Currently feeding a 6 month old who won't sit still due to excitement of food so is kicking the spoon of orange mush everywhere and I'm thinking that if I was a giraffe I wouldn't have to do that.
I've seen kittens that can survive on their own longer than my daughter would 
Animal babies sense danger and leave situations. Mine would stay put and chew her toes while a predator creeped up. Probably smile at the predator before her face got eaten.
She doesn't even expect the 'plop' at the end of the barbershop song that I've sang to her from birth.
How did cave parents fight off beasts while stopping their babies eating stones? Surely we shouldn't have lasted this long 
My 7 year old wouldn't wake if a tribe ransacked the house never mind if we lived in a cave and a dinosaur ate his family. Her sleep through getting eaten.
Why are we at the top of the food chain when we are pretty much useless for a good few year?!