Around 100,000 years ago, humans began incorporating more plant foods, leading to an omnivorous anatomy with adaptations like multiple amylase gene copies.

“but then there was a time maybe some like hundred thousand years ago where we started to incorporate more and more plant foods into our diet and we kind of settled in where we're at now which is you know having more omnivorous anatomy we have things that are both like shorter small intestine or sorry shorter uh large intestines and colons compared to herbivores yet we still maintain things like molars um for the destruction of plant leaves that types of things we have amylase which has been one of the like most prolific uh population level uh gene expansions that we've had where people develop multiple copies because it was it was so beneficial to our uh to what we were eating and making the most of it”