
Comb Jellies Defy Aging with Reverse Time-Travel Ability
Scientists have discovered that the ctenophore Mnemiopsis leidyi, a type of comb jelly, can reverse its development from an adult to a larval stage under stress, challenging traditional views on animal life cycles. This ability, similar to the 'immortal jellyfish' Turritopsis dohrnii, suggests that life cycle flexibility may be more common in the animal kingdom than previously thought. The findings, published in PNAS, open new research avenues in developmental biology and aging, highlighting the potential ancient origins of this trait.




