- Jun 24, 2003
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Interesting article from several years ago on Turritopsis dohrnii, a species of jellyfish, native to the Mediterranean. The adult, known as a medusa, is small--about 4.5mm in height and width--and feeds on plankton, fish eggs, and small mollusks. There are separate males and females. Fertilized egg develop into a larval stage known as a planula. These settle on the sea floor and grow into a colony of polyps. After further growth, they become medusae, which detach and become free-swimming adult jellyfish. Here's what's remarkable: if the young medusa is non-fatally injured, or stressed, it can return to the polyp stage, and regrow into a new medusa. Unless the jellyfish killed by a predator, pollution, or some other event, it theoretically can live forever by recycling itself. All animals--Homo sapiens included-- have genes that code for organ development and growth beginning at infancy. But these genes turn off once adult status is reached. Apparently, the genes of this jellyfish allow it to restart this process. And theoretically, it can regenerate itself indefinitely.
So maybe eternal life is possible without religion. We just need to know how to turn on the right genes.
Everlasting life: the ‘immortal’ jellyfish
So maybe eternal life is possible without religion. We just need to know how to turn on the right genes.
Everlasting life: the ‘immortal’ jellyfish