December 2010
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To Live Forever
The jellyfish pictured above, Turritopsis nutricula, has a rather extraordinary ability: like a phoenix, it can repeatedly revert from adulthood to its immature, polyp form and restart the process of aging, functionally rendering the organism biologically immortal. If the jellyfish can avoid disease, starvation, and predation, it has a potentially infinite lifespan.
In the same vein, the...