why do sheep, snakes and some other animals have slit pupils? How does this change the image created on the retina?
In: Biology
A vertical view is best for gauging distances along the ground, a useful ability when you’re lurking in the shadows and have only one shot at a mouse.
A horizontal shape gives prey animals a panoramic view suited to spotting predators approaching from nearly any angle
Circular pupils are generally found on animals that chase down their prey, such as cheetahs, or on taller ambush predators like lions and tigers.
From https://www.sciencemag.org/news/2015/08/video-predator-or-prey-eyes-have-it?utm_source=youtube&utm_medium=social&utm_campaign=youtube_desc_link
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