The loudest animal in the world is believed to be the Blue Whale. Due to its size, this whale can emit a sound larger than the other animals. Since the sounds of the blue whale are not heard by most people, the blue whale is often overlooked when considering its loud sound. The animal known for having a loud sound is the howler monkey. Their screams can travel a distance of a few miles.
The sound can even travel through crowded brushy areas like a rainforest. However, the howler monkey’s survival has become threatening due to environmental issues, hunting and people wanting to keep these animals as pets until they hear their loud cries. Most howler monkeys are native to the Americas that are located close to or south of the equator.