Frogs catch insects and other small food animals on the sticky tip of its long tongue.
All summer long, the frogs squat, motionless, on the bank of a quiet pond or brook and watch for passing insects. If a fly or cricket passes within reach, the frog’s long tongue will snap out like a flickering whip, so fast that you can scarcely follow the action. The insect is caught on the sticky tip. Just as quickly the frog flips its tongue back into its mouth.