The tongue of an alligator snapping turtle aids fish capture via a worm-like lure.

References

"An alligator snapping turtle lies in wait for a passing fish, well camouflaged against the muddy river bed. Like all turtles and tortoises, it has no teeth, but its jaws are covered in a sharp-edged horny beak suitable for shearing flesh. On the floor of its mouth is a fleshy pink worm-like lure, which the turtle waggles to attract fish. Eager to seize the 'worm', a fish may swim right in the turtle's gaping mouth." (Foy and Oxford Scientific Films 1982:142)

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Book
The grand design: Form and colour in animalsSeptember 26, 1983
Sally Foy

Living System/s

Organism
Alligator Snapping TurtleMacroclemys temminckiiSpecies