You have advantage on melee attack rolls and grapple checks while in water.

You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.

Your Constitution score increases by 2, and your Wisdom score increases by 1.

No average lifespan for an alligator has been measured.

Your size is Medium.

Your base walking speed is 30 feet, and you have a swimming speed of 30 feet.

Your toothy maw is a natural weapon, which you can use to make unarmed strikes. If you hit with it, you deal piercing damage equal to 1d6 + your Strength modifier. When you hit with your bite attack, as a Bonus Action you can attempt to grapple a creature your size or smaller. Until this grapple ends, the target is restrained, and you can't bite another target.

You can hold your breath for up to 1 hour at a time.

You have tough, scaly skin. When you aren’t wearing armor, your AC is 13 + your Dexterity modifier. You can use your natural armor to determine your AC if the armor you wear would leave you with a lower AC. A shield’s benefits apply as normal while you use your natural armor.

You can speak, read, and write Common and one other language of your choice. You can understand all other crocodilians.