The Great-Grandparents of animal kingdom

Red sea Urchins: 200 years old

Bowhead Whale: More than 200 years old

Rougheye Rockfish: 200+ years old

Freshwater Pearl Mussel: 250+ years old

Greenland Shark: 272+ years old

Tubeworm: 300+ years old

Ocean Quahog Clam: 500+ years old

Black Coral: 4000+ years old

Glass Sponge: 10,000+ years old

Hydra: Potentially Immortal

Turritopsis Dohrnii: Potentially Immortal