nodule

Legumes such as beans and peas naturally form root nodules, specialized structures that create the oxygen-poor conditions these bacteria require.

This vast region is targeted for the extraction of polymetallic nodules that contain valuable minerals such as cobalt, nickel, and copper -- key components for electric vehicles and renewable technologies.

The Cook Islands -- which lays claim to one of the world's biggest deposits of polymetallic nodules -- signed a contentious deep-sea mining cooperation deal with China earlier this year.

The discovery was made after the Democrat politician reported urinary symptoms which led doctors to find a small nodule on his prostate.

Many of the minerals involved in proposed deep sea mining operations are located on black, potato-shaped nodules that lie on the seafloor.