system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are male Homo sapiens typically stronger than females when the opposite is true for most other spiecies?

Emphasis on most. 

I was watching a documentary and they said that females are typically larger, stronger, and more aggressive then the males. Why isn't this true in humans?
gpt
A lot of those species, in which the female is larger, stronger and more aggressive than the male are species where the animals are solitary. For a female to be bigger and more aggressive than the male helps her when she needs to protect herself while pregnant / needs to protect her young afterwards.

Humans, however, are social animals so women aren't supposed to rely only on themselves while pregnant. They have the protection of the group.