Jellyfish Turritopsis Nutricula is the only immortal on Earth

As scientists have found on Earth live immortal animal is the jellyfish Turritopsis nutricula. These mysterious inhabitants of the seas never die a natural death!
Genetics and specialists of marine biology is actively studying the jellyfish to understand how it manages to reverse the aging process.

The Medusa of this species is relatively large: only 4-5 mm in diameter. And unlike most jellyfish that after participation in the reproductive cycle, die, Turritopsis Nutricula after mating return to the juvenile stage.

Scientists believe that the tiny Medusa-hydroid species Turritopsis nutricula is the only organism on Earth capable of self-regeneration and rejuvenation. This cycle may repeat it countless times, which makes her virtually immortal.

This species of jellyfish native to the Caribbean, there are two stages: the polyp and the Medusa, in which it exists from several hours to several months. However, trying this multicellular organism doesn't die and returns back to the stage of a polyp, repeating the cycle an infinite number of times.

The opening, as often happens, happened spontaneously. Once an Italian scientist Fernando Boero to their own experiences in a planted aquarium "on the preservation of several jellyfish species Turritopsis nutricula. These jellyfish were little known to the General public though, because that had a completely nondescript appearance and rather modest (no more than five millimeters in diameter. For some reason the planned experiments had to be postponed, and researcher, is common to all academic absent-mindedness, forgot about the unfortunate jellyfish. The aquarium has dried up and all its inhabitants seemed to have died.

Having discovered this sad fact, Boero was pospischil hands and began to clean the aquarium to fill it with other "experimental". But, Boero wouldn't be a real scientist if I had not attempted to explore the remains of the dried up to the size of a match head jellyfish, before you throw them in the trash.

Imagine his surprise when it turned out that Medusa was not killed, but only threw its tentacles and turned into a larvae.

Boaro decided to continue a spontaneous experience and no touching, re-filled the tank with water.

After some time a miracle happened: semi-dried larvae turned into polyps, which subsequently spun off new jellyfish.

So it became clear that unremarkable, one might even say — primitive small jellyfish can do the impossible: to voluntarily control their own genes, so in case of emergency "move back", returning to "the nursery" stage of development and thus starting her life over again.