This 27 January 2020 video says about itself:
Monkeys and Apes Have Entered The Stone Age
The stone age marked a turning point in human evolution, playing a vital part in our species’ development and making way for our journey in technology. So when I heard that several species of monkeys and apes have officially entered their own stone age, I was very excited.
Tool use in animals is always fascinating, and stone tool use is even more incredible. In this video, I wanted to explore what animals use tools, what primate archaeology can tell us about these primates (capuchins, macaques and chimpanzees) and where these animals might be headed now they’re in their own stone ages.