Which mammal can make the loudest sound?

Answer 1

The Blue Whale produces a sound of around 188 decibels that can be heard up to an astounding 530 miles underwater.

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188dB re what though? The 1µPa used in marine acoustics and sonar, or the human-threshold of 20µPa used in airborne acoustics? They are 26dB apart. The whale is also probably exploiting (blissfully unawares) its own low frequency for higher range and the nature of the ocean's acoustics, in which density boundaries and the water surface combine to produce a rather lossy, un-tuned acoustic wave-guide.

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Would its call alone reach that far? If you do the sums (20*log[distance]), the pure spreading loss over 530 miles reduces the call intensity by 63dB from what it is at 1mile, but that is without any absorption and scattering.

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There was once a proposal to use acoustics like this artificially to measure ocean temperature change, but it was swiftly squashed when the marine-biologists pointed out the huge transmission sound level and power necessary to reach across the Atlantic would deafen the seas' wild animals for miles around!

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(It is this waveguide effect and the scattering that gives the ocean the reverberation responsible for giving recorded whale calls the plangency that leads to "New Age" types going all gooey over so-called "songs". The animals themselves merely grunt and whistle.)

Answer 2

Any animal can make a loud sound if they fart loud enough

Answer 3

Bats are one of the best animals because they cant see they hear things and so are cats because they hear and smell there prey so they have great senses cats are great!

Answer 4

Tiger it can be heard for several miles away

Answer 5

The Kodiak bear.

Answer 6

tiger