Hard To Believe May 2026
: The Turritopsis dohrnii is a species of jellyfish that can theoretically live forever by reverting to its juvenile polyp stage after reaching maturity.
: On Jupiter and Saturn, the intense pressure and heat in the atmosphere can squeeze carbon into diamonds, which then literally rain down toward the planet's core. Hard To Believe
: Sharks have been on Earth for over 400 million years, meaning they are older than trees and even the North Star. : The Turritopsis dohrnii is a species of