yes they do
of course dumdum
It's called the Nictitating membrane
Even though sharks are among very few fish which have eyelids, they do not blink. Most species of sharks have special nictitating membranes which go over their eyes to protect them when they are hunting or under attack.
A shark cannot blink it's eye but sharks do have a nictitating membrane that will cover the eye in order to protect the shark's eyes from the struggles of prey attempting to escape ~ see related link below for additional information regarding nictitating membranes .
no tiger sharks are fish but r sharks
The nictitating membrane is part of a frog's eye. It is just above the lower lid and acts as a protective third eyelid.
Many birds, reptiles, and mammals have nictitating membranes on their eyes. These membranes are transparent and can blink while leaving the eyes open.
are tiger sharks mutualism
no
Yes Tiger Sharks are endangered
Tiger sharks are very dangerous, and clever
Yes