Key points from article :
Tiny hydra – a centimetre-long polyp that inhabits fresh water all over the world – does not show any sign of deteriorating with age.
Could live in ideal conditions without showing any sign of senescence.
Also showed constant fertility over time.
But in wild they are exposed to the normal dangers – predation, contamination, diseases.
Most of the hydra’s body is made of stem cells with very few fully differentiated cells.
The study was published in the Proceedings of the National Academy of Sciences.
