Key points from article :
Tube worm Escarpia laminata live between 1000 and 3300 metres below sea level.
Their environment has a year-round abundance of food and no predators.
Can measure more than 1.5 metres, and feed via symbiotic bacteria.
They don’t produce countable “growth rings” so scientist rely on a growth model.
Worms studied estimate at 250 to 300 years and could be others over 1000 years old in nature.
Hard to put an upper limit on their age, because they grow more slowly as they get older.
The study was published in The Science of Nature journal.
