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Why cant snakes close their eyes?

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Anonymous

15y ago
Updated: 8/18/2019

Borrowed from Rasputin:

http://library.thinkquest.org/11922/reptiles/snakes.htm

A snake's eyes are rounded and with lenses adjustable for distance vision. With the exception of the blind snakes, the eyes of a snake are permanently covered and protected by a transparent lower eyelid (called a spectable or brille). The fusion of the eyelids does not allow a snake to blink or close their eyes. Since the snake lacks external ear openings and eardrums, they hear by using their head to pick up vibrations and sounds from the ground. Experiments have shown that snakes can hear airborne sounds as well, although not well.

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15y ago

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