Giant snapping turtles can grow to be 12 feet in diameter.
Although they appear slow and ponderous, they are capable of startling bursts of speed and will aggressively attack smaller creatures that approach them. One snap of a giant turtle's jaws can cut a human in half, and these creatures aren't fussy about what they eat.
Stable: Whenever an effect knocks the turtle prone, it can make a DC 10 CON saving throw to avoid being knocked prone. A prone turtle is upside-down. To stand up, it must succeed on a DC 10 Dexterity check on its turn and then use all its movement for that turn.
Amphibious. The turtle can breathe air and water.
Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 18 (4d6 + 4) slashing damage.