yngmnwntr , 1 month ago https://primatology.wordpress.com/2008/04/29/orangutan-photographed-using-tool-as-spear-to-fish/ Sumatran Orangutans also use hand tools while Orangutans from Borneo do not.
https://primatology.wordpress.com/2008/04/29/orangutan-photographed-using-tool-as-spear-to-fish/
Sumatran Orangutans also use hand tools while Orangutans from Borneo do not.