Observations of Coiba’s tool-using immature capuchin monkeys show them carrying abducted infant howler monkeys. What is the reason for this behavior? Vanessa Crooks Caught in the act! Capuchin monkeys ...

Add Yahoo as a preferred source to see more of our stories on Google. Now, the monkeys have taken their shenanigans a step further. They have been caught doing something that scientists had never seen ...