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This strange sea creature looks like poop and may survive for an astonishing 120 years

In 2000, biologists on Australia’s Great Barrier Reef took tiny tissue samples from 76 sea cucumbers, put them back on the ...
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This creature was supposed to die—but turned back into a child. Could it hold the secret to immortality?

The warty comb jelly, Mnemiopsis leidyi, is a fascinating sea creature with a litany of weird biological traits, including regeneration. They can also de-age themselves physically into their larval ...