system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do humans need to learn how to swim while many other mammalian species seem to know by instinct?
gpt
This roots into the whole "why are human babies so defenseless" it's because of our intelligence.

If we were to be born with our brains fully formed and ready to go, with the skull to encompass it, along with our ability to walk upright, we would never fit out of our mother's uterus.

So we get born at what seems to be an earlier stage of our development and develop fully outside.

This means that we have to learn things that are innate to other species, such as walking, communicating, swimming, hunting, etc.