A rare cultural behavior spreads among young male capuchins and baby howlers, raising questions about animal traditions and ...

Gone Monkey Gone! Capuchin Named 'Joker' Sparks Cruel Baby Howler Monkey Abduction Fad On Panamanian Island. A capuchin monkey named 'Joker' has sparked a bizarre and cruel fad among his kind on an ...

Credit: Christian Ziegler/Brendan Barrett / Max Planck Institute of Animal Behavior/Cover Images A capuchin monkey named ‘Joker’ has sparked a bizarre and cruel fad among his kind on an island off the ...

Capuchins are also known for developing odd social rituals across their range. Scientists studying mainland populations have ...