Key points from article :
Sea urchins can quickly regrow damaged spines and feet.
MDI Biological Laboratory studying sea urchins to better understand the aging process in humans.
New study hints that physical decline that typically accompanies aging is not inevitable.
Some live to extraordinary old ages with no signs of poor health and no increase in age-related mortality (unlike humans where it doubles every 8 years).
Regenerative capacity doesn’t decline even in species with shorter life expectancy.
Senescence may not be tied to a short life expectancy in the wild.
The study was published in the Aging Cell journal.
