The blue whale, the largest animal ever known to exist onEarth, has an impressive call to go with its massive size. The call of a blue whale reaches 188 decibels—louder than a roaring jet engine's ear-piercing 140 decibels. The average human conversation is about 50 decibels, and the human eardrum will rupture at about 200 decibels. Yet, many of these animals approach that level regularly. This list of theloudestanimalsonearth has been compiled by the decibel levels they can produce. Below are a few of theloudestanimalsonEarth!The blue whale isthe largest animalonEarth, and its voice is just as massive. At around 188 decibels, its calls would still measure approximately 126.5 dB in the air—enough to cause ear discomfort with prolonged exposure. Their clicks not only make them possibly theloudestanimalonEarth, but they’re also essential for communication within their groups. Without a doubt, if you’re wondering whatisthe world’s loudestanimal, the sperm whale is a prime contender. Theloudest bird in the world is responsible for an ear-splitting sound that's far from the tuneful birdsong you would expect. A person shouting is around 85dB, while a baby crying can exceed 100dB. But theloudestanimal, relative to its body size, is a tiny insect called the water boatman.So Loud Yet So Quiet. So why don't people notice how loud these tiny insects are? It all has to do with the way sound travels across the water air interface. Despite their massive size and loud vocalizations, blue whales are not aggressive animals. They are considered to be gentle giants and are not known to harm humans. However, their population has been significantly reduced due to hunting and other human activities. From theloudest species in the animal kingdom to the furriest, test your knowledge with this animal trivia. Plus, learn about critical efforts to protect marine mammals and create a healthy ocean. Sperm whales aretheloudestanimalsonEarth, capable of making 230-decibel sounds in short bursts. Jet engines, capable of breaking eardrums, generate 150 dB. Scientists estimate that 180–200 dB can be lethal to humans. Blue whales are among Earth's longest-lived animals. Scientists have discovered that by counting the layers of a deceased whale's waxlike earplugs, they can get a close estimate of the animal's age. The oldest blue whale found using this method was determined to be around 110 years old.