Capuchin monkeys know best how to crack a nut
Wild bearded capuchin monkeys are more skilled than anyone in cracking nuts, shows a new study by Indian-American psychologist Madhur Mangalam.
The monkeys are known to use stone “hammers” to crack nuts.
The monkeys are quite careful about the amount of force delivered to those nuts.
They adjust the force applied with each strike based on the condition of the nutshell, making it less likely that they will end up smashing the tasty kernel inside.