It has been known for some time that some species are able to regenerate entire limbs if they lose them. However, one species of jellyfish, turritopsis nutricula, goes much further; it uses the same cell re-purposing technique to turn itself back into a polyp (its immature form), thereby re-starting its life-cycle. Apparently the jellyfish use this cunning technique when they need to travel in hostile environments, such as when hitching a ride on cargo ships. This has led some people to speculate that a similar process might be used to allow human beings to travel to the stars.
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Cheryl Morgan is the former non-fiction editor for Clarkesworld Magazine. The magazine won two Hugo Awards while she was on the staff.
Cheryl Morgan is the editor of Salon Futura
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Hugo Winner 2009
Best Fan Writer
See Best of 2008 for samples of eligible work