10 Loudest Animals on Earth: Nature’s Deafening Creatures

Turns out the animal kingdom has its own decibel wars, and some competitors are shockingly small. This list rounds up ten creatures whose calls, clicks, snaps, and roars rank among the loudest sounds produced by any living thing, judged by measured or widely documented sound-pressure levels and the sheer reach of their voices.

We picked entries for a mix of raw volume, distance traveled, and the delightful absurdity of how loud some of these animals get relative to their size. Expect whales, bugs, and one very shouty frog.

#10. Cicada

Cicadas hold the title of loudest insect on the planet, and they earn it with a body part built specifically for noise. Males have a pair of ribbed membranes called tymbals on their abdomen that buckle in and out rapidly, producing a buzzing drone used to attract mates.

Their song can reach around 100 to 120 decibels up close, loud enough to cause discomfort to human ears if you’re standing right next to a chorus. An interesting fact: some cicada species also have a hollow abdomen that acts like a natural amplifier, boosting their tiny bodies’ output into a sound that can dominate an entire summer afternoon.

#9. Howler Monkey

Howler monkeys are considered the loudest land animal, and their name is not an exaggeration. A specialized, enlarged hyoid bone in their throat acts as a resonating chamber, turning their calls into deep, guttural roars that echo through dense rainforest canopy.

These calls are used to mark territory and avoid physical confrontations with rival troops, saving energy that would otherwise go into fighting. Their roars can reportedly carry for miles through thick jungle, which is remarkable given that howler monkeys themselves rarely weigh more than a large housecat.

#8. Coqui Frog

Named for the two-note call that sounds like its own name, the coqui frog is a tiny amphibian native to Puerto Rico that produces a surprisingly massive sound for its size. Measured close up, its call can reach around 100 decibels, comparable to a chainsaw.

Only males call, using the sound both to attract females and to warn off rival males from their territory. Because the coqui has become an invasive species in places like Hawaii, entire neighborhoods can be filled nightly with a wall of sound from thousands of frogs no bigger than a thumbnail.

#7. Water Boatman

Pound for pound, this tiny freshwater insect may be the loudest animal on Earth relative to its size. The water boatman, particularly the species Micronecta scholtzi, produces sound by rubbing its penis against ridges on its abdomen in a process called stridulation.

Despite being only a few millimeters long, its call has been measured at around 99 decibels, loud enough to be heard from the riverbank above the water’s surface even though the insect itself is submerged. Researchers have noted the sound is disproportionately loud for such a minuscule body, making it a favorite curiosity among bioacousticians.

#6. African Elephant

Elephants are famous for trumpeting, but their loudest sounds are ones humans often cannot hear at all. They produce low-frequency infrasonic rumbles that can travel for several miles across open savanna, used to coordinate movement and maintain contact between separated herd members.

These rumbles can register above 100 decibels at the source, a volume made even more impressive because it originates from vibrations in the elephant’s larynx rather than a shout. Researchers have found that elephants can sense these vibrations through the ground with sensitive nerve endings in their feet.

#5. Kakapo

This flightless, nocturnal New Zealand parrot has one of the strangest mating calls in the bird world. During breeding season, male kakapos inflate an air sac in their chest and produce a deep, booming call that can carry for a considerable distance across valleys and hillsides.

The bird repeats this boom for hours at a time, often through the night, to attract females from far away. Because the kakapo is critically endangered, conservationists have used the distinctive sound of its booming to help track and monitor surviving populations in the wild.

#4. Lion

A lion’s roar is one of the most recognizable sounds in nature, and it serves a clear survival purpose. Produced by a specialized voice box with unusually flat, elongated vocal cords, the roar allows lions to communicate territory boundaries and locate pride members across vast stretches of savanna.

The sound can reportedly be heard from several miles away under the right conditions, making it one of the farthest-carrying calls of any land predator. Interestingly, lions cannot purr the way house cats do because the same vocal cord structure that enables their roar prevents the continuous purring motion.

#3. Blue Whale

The blue whale is the largest animal to have ever lived, and its calls are among the loudest produced by any creature. Their low-frequency moans can reach roughly 180 to 188 decibels underwater, a volume that can travel across entire ocean basins under the right conditions.

Because sound behaves differently in water than in air, these calls are not comparable directly to airborne decibel levels, but they remain extraordinarily powerful acoustic events. Scientists believe these vocalizations play a role in long-distance communication between whales separated by hundreds of miles of open ocean.

#2. Pistol Shrimp

Don’t let the small size fool you, the pistol shrimp produces one of the most intense sounds in the animal kingdom using a single oversized claw. When it snaps this claw shut, it creates a cavitation bubble that collapses violently, generating a shockwave along with a flash of light and heat.

The resulting snap has been measured at sound pressure levels exceeding 200 decibels, briefly rivaling or surpassing much larger animals despite the shrimp itself being just a few centimeters long. This snap is powerful enough to stun or kill small prey like fish and crabs.

#1. Sperm Whale

The sperm whale takes the top spot as the loudest animal on Earth, thanks to the powerful clicking sounds it uses for echolocation. These clicks are generated in a massive organ inside the whale’s head called the spermaceti organ, and they can reach sound pressure levels of around 230 decibels underwater.

Sperm whales use these clicks to navigate the deep ocean and locate prey like giant squid in near-total darkness, sometimes diving thousands of feet below the surface. The clicks are so powerful that researchers have theorized they could potentially stun or disorient prey at close range, though this remains a topic of ongoing study.

From a shrimp’s violent snap to a whale’s echoing click, volume in the animal kingdom rarely comes from size alone. It’s a mix of clever biology, evolutionary pressure, and sometimes sheer necessity that turns these creatures into nature’s most surprising noisemakers.