Max decibels: 180 dB
Blue whales are the largest animals on Earth, and they have a large sound to match. They can reach 80 feet in length, 200 tons in weight, and their hearts alone are the size of a car. Blue whales produce loud, low-pitched sounds that are usually in the 15- to 40-hertz range.
They use their calls to communicate long-distance and even to map out their surroundings by estimating the timing of the echoes of their calls. Sound travels faster in water than in air, so they can estimate the distance to geographical features, or even other whales, with relative ease. Human sonar equipment is basically modeled after whale echolocation, so their loud sounds aren’t for nothing.
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