Frogs’ eyes have a surprising auxiliary function: they help in swallowing. As a frog swallows its prey, the eyes sink through openings in the skull and help force the food down the throat. This is why frogs seem to blink as they eat.
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Frogs’ eyes have a surprising auxiliary function: they help in swallowing. As a frog swallows its prey, the eyes sink through openings in the skull and help force the food down the throat. This is why frogs seem to blink as they eat.