Immortal Jellyfish - Turritopsis nutricula

Believe it or not, according to scientists, the creature you see, which is a 5mm jellyfish is actually… immortal. It could possibly be the only creature in the world which is actually immortal.

Jellyfishes normally die after propogating themselves asexually, but most jellyfish of the genus Turritopsis are able to revert back into an immature sexual state after reaching adulthood, therefore technically, they could never die. It was also documented that it could transform into its younger form (in a bloblike cyst, which then develops into a polyp colony – the first stage of a jellyfish’s life) even when facing crisis, starvation or physical damage.

Such jellyfish which is a hydrozoan is believed to be able to transform itself from its adult state into younger state through process called transdifferetiation, where a type of cell can transform into another type of cell. This is usually only found in organ regeneration among living beings, but occurs quite naturally in this creature. These jellyfishes are now invading the oceans and its numbers are increasing rapidly. Marine biologists and scientists are now keeping a close eye on these tiny creatures.

Other known immortal species includes: Turritopsis dohrnii

Well, another creature which is believed to be immortal is the Hydra. It has been suggested that hydras do not undergo senescence or the aging process, and so are considered biologically immortal.

The jellyfish has also spark some humour on Scott Adam’s blog.

Generally speaking, animals in the natural world are very wary of attacking anything which might cause them harm. To do so would potentially cause them major injuries, reducing their chances of successfully catching prey. It is an effective survival mechanism, honed over centuries of evolution, so that apex predators avoid one another and other animals which could be dangerous to them. Now and again though, two closely matched creatures will stumble across one another. Sometimes, either through desperation or stupidity, this will result in a titanic struggle, a spectacular encounter which may end up with one or sometimes both animals sustaining life-threatening injuries.

Read the Top 10 Ocean Rivalries at AskMen.com >>