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00:00 But why are cat pupils so vertical?
00:03 The shape of a predator's pupil can provide clues about the nature of its prey and its hunting strategy.
00:09 Cats have vertical pupils that make it easy to hunt at night and by surprise.
00:15 Their pupils, like crocodiles and other reptiles,
00:18 offer a precise measurement of the distance that separates them from their prey.
00:22 Such an eye configuration favors hunting on flat ground.
00:25 Cats have vertical pupils that allow them to leap on their prey without letting it escape.
00:31 (upbeat music)