Comment by antisthenes

> would someone a million in the future be able to tell that today's bananas, corn, watermelons, cattle, dogs etc. were the result of selective breeding by an intelligent species?

They might be able to, based on when these disappeared, by comparing them to something more durable that is easier to date definitevely.

All those organic things bred to fulfill the purpose of being useful to our civilization would very quickly disappear and become outcompeted by the undomesticated species. This sudden disappearance (along with the disappearance of more durable artefacts, like steel/plastics) might hint to someone that these species "are not like the others".

Also by tying them to the cutoff in human remains (this is assuming humans disappear along with advanced civilization)