This turtle fishes with a worm on its tongue
Macrochelys temminckii, North America's heaviest freshwater turtle, sits motionless with a pink, worm-shaped tongue lure—aggressive mimicry for passing fish. Ridged shells evoke alligator armour, hence the name. It prowls Gulf-draining rivers from Florida to Texas and north into the Midwest, not lonely farm ponds.
Once treated as a single Macrochelys species, genetic work now separates the Suwannee snapping turtle, whose last common ancestor with the alligator snapper lived roughly three point two to eight point nine million years ago. Three rows of spiked osteoderms on the carapace distinguish it from the smoother common snapper. Unverified lore claims a one hundred eighty-three kilogram Kansas giant in nineteen thirty-seven; verified captives include a one hundred thirteen kilogram Shedd Aquarium animal and another at one hundred seven kilograms. Mature males show a cloaca past the shell edge and a thicker tail base.
Diet is opportunistic and mostly animal, yet plant bulk matters. Stomachs of sixty-five wild turtles sampled March to October were fifty-six percent acorns by volume from water, overcup, and willow oaks, even though fish were the most frequent individual items. Persimmons, grapes, hickory, and pecans join scavenged carcasses. Core sites favour cut banks, root balls, submerged timber, and canopy shade; average home ranges stay tied to flowing Gulf-linked waters. Only nesting females routinely climb onto open land.
Sexual maturity arrives near twelve years. Clutches of ten to fifty eggs follow spring mating, some females nesting yearly and others every other year, with temperature-dependent sex determination. Wild longevity guesses top two hundred years, though eighty to one hundred twenty seems likelier; captives often live twenty to seventy. U.S. populations sit at historic lows after meat harvests rose two hundred nine percent since nineteen ninety-eight, with minimum size limits but no maximums that spare big breeders. The lure may be delicate; human appetite is not.
Source: Alligator snapping turtle