Silo of annelids and marine worms, from reefs to hydrothermal vents.
Harmless
Giant tube worm
Riftia pachyptila
Giant tube worm
Lacking a mouth, stomach or anus, it lives entirely thanks to symbiotic bacteria that convert the toxic hydrogen sulfide of hydrothermal plumes into energy.
🌊 1500–2500 m
⚡ Lives without a mouth or stomach, entirely nourished by internal symbiotic bacteria
⚡ Its hemoglobin carries both oxygen and a deadly poison without harm, a unique biochemical feat