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
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