It's not so much as how they retract their eyes (im pretty sure they use muscles for that) as to what the eye retraction actually does. Frogs actually retract their eyes in order to swallow. Their eyes get pulled into the sockets and bulge in the top of their mouths, which helps them swallow. It is strange, but true. XD
Frogs retract their eyes to help protect them. By pulling their eyes into their sockets, they can shield them from potential harm or danger. This ability also allows them to create a more streamlined shape for swimming efficiently.
They retract their eyes down into their throats to push the food down.
Frogs use the muscles of their eyes and pull their eyeballs down which pushes the pray down. The tongue is rather used for catching and holding the pray. Tongueless frogs (Pipidae) push their food in their mouth with there front legs. This looks strange, as the frogs 'eats with his hands'.
9578. Last I checked, frogs had two eyes each. Multiply the number of frogs by 2, genius.
big eyes
No.
According to biologists, the protruding eyes of a frog help it to see all of its surrounding day and night. In addition, the eyes are water resistant and the frogs are able to rotate their eyes because they are unable to turn their heads around when detecting approaching predators.
Yes!
No.
No it stickes
yes
You don't make a frogs eye bulge.