Eli5 How and why do owls rotate their heads 270*

Question

I tried looking it up in the internet but I still just dont get it

In: 4

Answer 1

Owls are head turners because their eyes can’t move.
>Owls can’t move their eyeballs. That’s because owls don’t have eyeballs at all. Instead, their eyes are shaped like tubes, held rigidly in place by bones called sclerotic rings. (Human eye sockets, which hold spherical eyes, do not have sclerotic rings.)