Hard To Believe Site

: While the Great Pyramids were being built in Egypt, woolly mammoths were still roaming the earth on Wrangel Island; they didn't go extinct until about 4,000 years ago.

: The Turritopsis dohrnii is a species of jellyfish that can theoretically live forever by reverting to its juvenile polyp stage after reaching maturity. Hard To Believe

: Human stomach acid is strong enough to dissolve a single-edged razor blade in about two hours. : While the Great Pyramids were being built

: 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. : On Jupiter and Saturn, the intense pressure

: In a 22-year window (1843–1865), it was theoretically possible for a Japanese samurai to send a fax to Abraham Lincoln .

Life is often stranger than fiction. From historical coincidences that feel like glitches in the matrix to biological oddities that defy logic, there are countless truths that are genuinely hard to believe.

: France was still using the guillotine for executions as late as 1977—the same year the original Star Wars was released in theaters. Bizarre Science & Nature Facts