Howler monkeys are the LOUDEST land mammals on Earth, with their calls reaching an astonishing 140 decibels—that’s as loud as standing just 100 feet away from a jet engine at takeoff! Their thunderous howls can travel over 3 miles through dense forests, making them nature’s ultimate loudspeakers. At our center in Costa Rica, we care for howler monkeys injured by electrocutions, dog attacks, and vehicle collisions, giving them the chance to recover and return to the wild where they belong. Drop u

Chase away the Sunday scaries with some soothing howler monkeys. [VID: Compilation video of howler monkeys climbing on trees] | Nature | PBS

Howler monkey babies have an unusual—and accidental—predator: capuchin monkeys. In Panama, scientists have spotted the primates kidnapping howler infants and inadvertently killing them. But what is causing this behavior? Find out more: https://on.natgeo.com/4mueg2G | National Geographic