UW News
Gabrielle Rocap
May 1, 2019
Arsenic-breathing life discovered in the tropical Pacific Ocean
![people working on deck of boat](https://uw-s3-cdn.s3.us-west-2.amazonaws.com/wp-content/uploads/sites/6/2019/05/01141849/McLane_fixing_line_high_res-e1556745628389-150x150.jpeg)
In oxygen-poor parts of the ocean, some microorganisms survive by breathing arsenic. This holdover from the ancient Earth was not thought to still exist in the open ocean.