https://phys.org/news/2021-12-indigenous-huge-unique-source-ecological.html
The study, which interviewed a community of indigenous people in Doussala, Gabon, found that, on average, people knew of an astonishing 732 different plant and fruit-eating animal (frugivore) interactions, with some able to identify as many as 2700 interactions. This knowledge covered 100 frugivores from elephants to bats and 286 plant species.
Impressive. It is their economy so it stands to reason but still impressive.