Female putty-nosed monkeys get their males to run defense against predators
Female putty-nosed monkeys know what to do when they detect a leopard. They chirp out an alarm call to the males, essentially recruiting them to be their “hired guns.” In response, the males approach the group while making “pyow” sounds, demonstrating their commitment to serve as bodyguards, and possibly enhancing their reproductive opportunities, experts say. […]
Source: mongabay.com