Monkeys like sharing with friends and family, but are selfish when it comes to strangers. What a weird species! Clearly, we must kill them:
When paired with relative or “friend” the monkeys primarily went for the double reward, known as the “prosocial” choice, researchers led by Frans de Waal report in Tuesday’s edition of Proceedings of the National Academy of Sciences.
“The fact the capuchins predominantly selected the prosocial option must mean seeing another monkey receive food is satisfying or rewarding for them,” said de Waal.
But the monkeys weren’t so generous with strangers, choosing the so-called “selfish” option instead.