Snakes lack both an outer ear and middle ear, according to a 2012 study in the Journal of Experimental Biology. However, they have one middle ear bone that connects the inner ear to the jaw.

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Read more The post Your Inner Ear Started as a Fish’s Jawbone appeared first on discoverwildscience. ... Birds and reptiles, for example, usually have only one middle ear bone, ...

They have inner ear bones connected to their jawbone, which rests on the ground. When sound waves or vibrations travel through the earth, like footsteps or rustling, the snake can feel it through ...