By 2020 the worldwill beeatingmorefarmed than wildfish, Marinebacteriamayyield the cure forcanceranddeep-seabacteria may beexploitedto gobble up oil spills.
The worm's closest relatives, which also lack guts and mouths, live in deep-sea hydrothermal vents and rely on a different set of bacteria to allow them to survive in these hot and acidic conditions.