At Mysterious Universe, Brett Tingley reports on "Monkeys entering the Stone Age", i.e. a new study confirming that a monkey species in Panama use stone tools as crude hammers to smash coconuts, etc.
The study:
https://www.biorxiv.org/content/early/2018/06/20/351619
Capuchins were also observed demonstrating the same behavior in Brazil earlier:
(This post was last modified: 2018-07-11, 01:16 PM by Ninshub.)
The study:
https://www.biorxiv.org/content/early/2018/06/20/351619
Capuchins were also observed demonstrating the same behavior in Brazil earlier: