Snakes don’t have eardrums… HOW DO THEY HEAR THEN? What happens is that the lower jaw is connected to the columella (homologus organ to the mammalian stapes), a bone that connects to the oval membrane, which in turn connects to the inner ear.
In this way, being in contact with the ground or water, the jaw will receive the vibrations that are produced and will transmit them to the inner ear, and this is how snakes “hear”.
