Quote (juliusjuice @ Dec 24 2009 06:59pm)
there is no other organism quite like this. yes a tree can live for 10 thousand years, possibly forever. but this jellyfish reverts to polyp stage (infancy) after becoming sexually mature. it actually reverses its life cycle. 100% percent of these particular jellyfish do this.
i wonder if this means they are incapable of evloving further? dunno why i think that.
Well assuming the reproduce once they're sexually mature there should still be evolution. Pretty cool fact though.