Read her famous original article from 1963 here.

Jane spent over 6 months observing and following the chimpanzees respectfully before they would allow her to get close to them. When some of them became “friends” and would visit their camp to steal bananas, blankets, etc. she instructed the staff to never stop or chase after them. If not for these things, she could never have earner their trust.

Very inspiring to read about such feats when the majority of the population wants quick wins.