Paralvinella hessleri: The deep-sea worm that fights poison with poison, and shines like gold

A remarkable yellow worm, Paralvinella hessleri, thrives near boiling, toxic hydrothermal vents in the Pacific. This deep-sea dweller ingeniously converts deadly arsenic and sulphide into a golden mineral called orpiment, forming a natural shield. This unique adaptation allows the worm to flourish in an otherwise uninhabitable environment, showcasing nature's extraordinary chemical resilience.