Trivia No Eyeballs

[Beatriz9]

DID YOU KNOW? ​

Owls have no eyeballs.

You know how we (humans) have eyeballs? Well, owls don’t. They have eye tubes or cylinders, rod-shaped eyes that do not move in their sockets as eyeballs do. Instead, owls have to move their bodies or heads in order to look around.

Since moving their torsos would likely make noise that would alert their prey to their presence, owls have evolved to have necks that can spin up to 270° essentially silently.

But why favour neck-spinning over the seemingly simple eye ball-spinning method of looking around? Well, night vision requires large corneas that allow for light to be collected effectively even in the dark, which is why most nocturnal animals (like the slow loris or tarsier) have huge eyes. But owls have small skulls, so their big eyes couldn’t expand out. They instead developed into the rod shape of today’s owls. They aren’t alone though: some deep-sea fish (like the anglerfish) also have rod-shaped eyes for seeing in the dark.

(s)natureStudy

 

[plhbg1]

kaya pala nasa front yung eyes nila instead of nasa sides which most birds have

 

[Beatriz9]

kaya pala nasa front yung eyes nila instead of nasa sides which most birds have

Yes po haha parehas pala tayo ng napansin

 

[plhbg1]

Yes po haha parehas pala tayo ng napansin

binocular din ba tayong mga humans? kasi nasa harapan din yung eyes natin eh

 

[Beatriz9]

binocular din ba tayong mga humans? kasi nasa harapan din yung eyes natin eh

Isapa sa interesting fact is walang sound kapag lumilipad yung owl or very minimal lang

 

[plhbg1]

Isapa sa interesting fact is walang sound kapag lumilipad yung owl or very minimal lang

aba paano ba ma-explain na walang sound e hinahampas nga yung wings para makalipad

 

[abomination69]

Isapa sa interesting fact is walang sound kapag lumilipad yung owl or very minimal lang

oo napanood ko din to, grabe silent killer ang owl