Scientists sampled fish living in the Pacific's Mariana Trench and trenches in the Indian Ocean. . | Credit: Han Xu et al. (2025) Evolution and genetic adaptation of fishes to the deep sea.

And, worst of all, the pressure is so immense that even many species of weathered deep-sea marine life can't live there. So, ...

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So it's a bit like swimming in an indoor swimming pool in ... and Oceania - and includes the deepest water, called the Mariana Trench. The Arctic Ocean is the smallest and one of the coldest ...

Mariana Alfaro is a reporter for The Washington Post's breaking political news team. Previously, she co-anchored Post Politics Now. Mariana joined The Post in 2019 as a researcher for the Daily 202.

Microplastics are building up in human brains, blood, reproductive organs, and more. A new study suggests you ingest more plastic when you chew gum.

A team of Chinese scientists has developed a miniature 2.7-kilogram deep-sea robot to explore the deepest natural frontier on Earth — the Mariana Trench in the western Pacific Ocean, according ...