It is the large brain of the primates that allows them to explore and manipulate the world around them in ways that we cannot even comprehend.
Chimpanzees are known to use sharpened sticks to poke for termites in termite mounds. They also use it as a weapon and for establishing territory when the need arises. Gorillas carry a walking stick to gauge the depth of water before they cross the river. Japanese macaques are known to wash their food in sea water to remove dirt. These behaviours are scientifically proved as ‘not innate’ but passed on from generation to generation.