アニマルプラネットさんのインスタグラム写真 - (アニマルプラネットInstagram)「Howler monkeys are the loudest of all monkeys! They call to let others know where their territory is, alerting potential squatters to stay away. The calls sound like a loud whooping bark or roar. After one group of howlers call, another group answers. Chatty chatty! 🗣 . . #chimp #monkeys #monkeysofinstagram #primates #macaque #chimpanzees #hyenas #capuchinmonkey #chimpanzee #chimps #monkey #monkeymondays #photooftheday」7月7日 1時00分