What is a "howler monkey"?

The howler monkey is a large, arboreal primate with a distinctive appearance characterized by its shaggy fur, prehensile tail, and unique vocalizations. They are known for their loud howling calls, which can be heard from long distances in the dense rainforests of Central and South America where they reside. Their large size, strong limbs, and specialized hyoid bone enable them to produce these powerful vocalizations, making them one of the loudest animals in the animal kingdom. Howler monkeys are important inhabitants of tropical forests, where they play a crucial role in maintaining ecosystem balance and biodiversity.