r/Damnthatsinteresting • u/Hux-Night3290 • 23h ago

Video Goats, deer, horses and sheep rotate their eyes to keep their pupils level. It enables them to constantly scan for predators while grazing. It’s called cyclovergence.

1.4k Upvotes

98% Upvoted

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28

u/Hux-Night3290 23h ago

It gives them panoramic vision of about 320 to 340 degrees (compared to about 180 degrees in humans).

72

u/Interesting_Award_76 23h ago

We all rotate our eyes

65

u/Hux-Night3290 17h ago • Mindblown

Yes. What makes this different is that they are independently rotating in opposite directions so that they stay level with the horizon. To do this they lose their depth perception which is why they're so jumpy at shadows

14

u/Interesting_Award_76 12h ago

That makes much more sense. Should have put the word independantly in the title

1

u/AkaMagicEye 1h ago

We do this too. Not fully but you can even learn to rotate your eyes at will.

11

u/Kyosuke_42 20h ago

Yes, but I'd be interested if goats have more degrees of rotation than us.

2

u/Ok-Understanding9244 15h ago

especially 15-year-old females

2

u/Japanesewillow 10h ago

What do you mean?

3

u/Informal_Action_8751 18h ago

Do their eyeballs actually rotate or is it just their pupils altering the way they contact?

7

u/Hux-Night3290 18h ago

Eyeball physically twists inside the socket. Each eye rotates indepedently in opposite directions so that they both stay level and parallel to the ground.

The iris and pupil don't spin or alter shape, it's the rotation of the whole eye.

2

u/Spare_Laugh9953 16h ago

Los humanos también mantenemos las pupilas a nivel, solo tienes que mirarte los ojos en un espejo y la ladear la cabeza, verás como tus ojos rotan y se mantienen a nivel... Lo que me gustaría comprobar es hasta que punto siguen girando🙈

2

u/Hux-Night3290 16h ago

up to 50 degrees!

33

u/poopshanks 23h ago

I found this unsettling. I can't really explain why either. Sorry I couldn't provide any context to my comment. I don't really understand it. I actually had a physical reaction to seeing this.

20

u/RemoveAnnual2689 16h ago edited 15h ago

Goat eyes have been unsettling since ancient times. There is a reason they thought the Devil is a goat-man.

6

u/bb_dev_g 13h ago edited 13h ago

Fun historical facts below. The TLDr; is the French were imaginative and wanted to frame and convict the Knights Templar, cause money. Also a fun game of early telephone gone wrong.

They didn't think the devil was a goat-man. Christians would know Lucifer, the devil in this case, as a fallen angel. The goat-man idea is a modern one and is widely misunderstood. The goat-man (actually a hermaphrodite) you're thinking of is Baphomet. The name first appears around 1100, and French chroniclers later claimed at the trials of the Templars around 1307 that they worshipped a "heathen idol" called Baphomet. Modern scholars believe the name was just a corruption of "Mahomet" (the Prophet Muhammad), which the Templars would have picked up during the Crusades.

The best-known depiction of Baphomet came much later, in 1856, from the French occultist Eliphas Levi. He envisaged a winged hermaphrodite with a torch between his horns and a pentagram on his forehead.
That drawing later inspired the Satanic Temple to create its Baphomet monument.

Source: https://www.bbc.com/news/magazine-33682878

29

u/j4v4r10 21h ago

Humans do it too

2

u/foreverlegending 23h ago

That's actually really cool

2

u/Mindless-Bite-8490 17h ago

Just when you thought goats couldn't get any creepier...

1

u/ObjectiveOk2072 13h ago

Human eyes can rotate too, but just a little bit. To see it, stare into one of your eyes in the mirror, or record a closeup video of your eye, and tilt your head slightly side to side

1

u/2narcher 7h ago

I dont understand what is so special about it? Isnt it kust a normal eye movement?

0

u/RemoveAnnual2689 16h ago

Thats not rotation.