Frogs swallow food using their eyes!
"Frogs don't have the necessary muscles to chew their food. Instead, frogs can actually use their eyes to force their food down their throats. This is why it looks like a frog is blinking when it is eating. It's because its eyes are actually sinking down inside of its skull to push down on the food.
A frog's hearing also comes from near its eyes. A frog doesn't have separate external ears. Instead, it has an eardrum, called the tympanum, that is located just behind each eye. Frogs have really unusual anatomies. Clickhere to read more about them."