This 6 May 2020 video says about itself:
The First Person To See ALL 79 Major Groups Of Primates In The Wild | Primates | BBC Earth
It’s taken primatologist Russ Mittermeier 49 years to become the first person to see every major group of primate in the wild, but he’s hoping he won’t be the only one. This is the moment he spots the final one, number 79, the kipunji.