system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are animal young so conscious of their safety while human babies are the total opposite?

I live in the countryside so see lots of farm animals and always notice that the young are always aware of the dangers presented by any situation. Meanwhile my sister has tried to run in front of a car twice today. Is there some biological reason for the difference?
gpt
"Animals" are not. At birth, animals range on a full spectrum from completely helpless to basically just smaller versions of adults. Humans (who are animals too) are near the helpless end of that spectrum. Our huge brains obviously come with a lot of advantages, but the main disadvantage is that they take a *very* long time to develop. Furthermore, we are born "early" in that development, because our big heads simply couldn't fit through the birth canal if we waited until we were as developed as a typical mammal at birth.