is it possible for them not to? they don’t seem to be well documented but it must be difficult to keep track? i’m not educated in this at all
do jellyfish have a lifespan?
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is it possible for them not to? they don’t seem to be well documented but it must be difficult to keep track? i’m not educated in this at all
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Yes, jellyfish do have a “lifespan” though the name jellyfish spans 2000 known species and may span up to 300,000 unknown ones. Most jellyfish reach the last stage of their life cycle, reproduce and die.
However you might have heard that some jellyfish can revert aging, and this is true. T. DoHrnni, also known as “the immortal jellyfish” had been shown to be able to revert to an early stage in its life cycle and “become younger”.
There’s even one, Turritopsis dohrnii, that’s basically immortal because it can revert to its baby stage and start life over again! Studying them is tricky since they’re delicate, drift around unpredictably, and don’t exactly wear name tags. So while we know a lot, tracking individual jellyfish for their whole lives isn’t the easiest thing in the world!