[koboll]

Avocados are another seedpod (technically a berry, believe it or not) evolved to be eaten by mammoths and giant sloths. Unlike the osage orange, however, it didn't adapt to their extinction and would likely have gone extinct itself afterward, except for one saving grace: Mesoamerican humans thought they were delicious and started cultivating them.

[rpvnwnkl]

This was sort of alluded to in the article, they mention both avocado and papaya.