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whale cetaceans

Whale Cetaceans

• Ears
The whale ear has specific adaptations to the marine environment. In humans, the middle ear works as an impedance matcher between the outside air’s low impedance and the cochlear fluid’s high impedance. In aquatic mammals such as whales, however, there is no great difference between the outer and inner environments. Instead of sound passing through the outer ear to the middle ear, whales receive sound through the throat, from which it passes through a low-impedance fat-filled cavity to the inner ear.

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Filename:703116.jpg
Album name:Fauna & Flora
Rating (1 votes):55555
Keywords:#whale #cetaceans
Filesize:42 KiB
Date added:Mar 08, 2016
Dimensions:700 x 525 pixels
Displayed:55 times
URL:displayimage.php?pid=703116
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