[eli5] If genetics passed down from generation carry the anatomy of the creature, how does genetics pass down behaviors/instincts?

Question

[eli5] If genetics passed down from generation carry the anatomy of the creature, how does genetics pass down behaviors/instincts?

In: 8

Answer 1

It’s not that they learn the behaviors and pass them down through genes, it’s the genes that enable the learned behaviors.

The learned behaviors that lead to survival and reproduction therefore are more likely to be passed down.

Do that a couple thousand times and you got something that no longer seems like a learned behavior.