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Talk5 min

Why do cats have vertical pupils?

Emma Bryce · TED

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About

Peering into the eyes of different animals, you'll see some extraordinarily shaped pupils. House cats, for one, are twilight hunters with vertically elongated pupils. Many grazing animals, like goats, have rectangular pupils. Other animals have crescent- or heart-shaped pupils. So, what's going on? Why are there so many different pupil shapes? Emma Bryce digs into the science of animal vision. [Directed by Bálint Gelley, CUB Animation Ltd, narrated by Alexandra Panzer, music by József Iszlai].

The talk

  1. Why do cats have vertical pupils? 5 min · TED's player

Credits and licence

Institution
TED
Department
TED-Ed
Speaker
Emma Bryce
Year
2022
Level
For everyone
Language
English
Subjects
Biology, Teaching and learning
Source
TED
Licence
CC BY-NC-ND 4.0, as TED states it. Non-commercial use only, and no changed versions. TED's terms
Attribution
TED Talks are licensed by TED under Creative Commons BY-NC-ND 4.0 International and are shown here in TED's own player, as TED's usage policy asks.
Who can watch
TED gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed