(Eli5) Howcome we humans need decades to grow into full grown adults when most animals reach adulthood in few years?

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Why does it take so long for us?

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Anonymous 0 Comments

Animals needed to mature quick in order to survive and procreate. It was long process, lots of species didn’t adapt quick enough and gone extinct.

We evolved from animals which were relatively safe on trees (not many predators climbed trees and ones that did could be easily fended off with sticks to the face) and that ground walking fad is fairly new to our kind. So we as a specie didn’t need to mature quickly, we took our time in our safety in trees. Then we started walking on ground solely, no more trees. The problem of long maturing of the young persisted.

So we adapted by staying in larger groups to shield the young until they are big enough to contribute to the group. Didn’t always work because of big predators, but we traveled a lot and could hunt and scavenge in places other predators couldn’t.

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