Science8/26/2025NYT

This Golden Arsenic Deep-Sea Worm Fights Poison With Poison

A deep-sea worm has developed a unique defense mechanism against the toxic arsenic in its environment. Researchers have discovered that the worm combines the arsenic with another chemical to produce a less toxic compound, effectively neutralizing the poison. The worm, which has a golden color, lives in areas with high levels of arsenic, a naturally occurring element that can be highly toxic to many organisms. By converting the arsenic into a less harmful form, the worm is able to thrive in this challenging environment. This discovery sheds light on the remarkable adaptations of deep-sea creatures and their ability to cope with the unique challenges of their habitat. The findings may also have implications for our understanding of the broader ecosystem and the role of such adaptations in the overall functioning of deep-sea communities.

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