At ocean-ocean convergences, one plate usually dives beneath the other, forming deep trenches like the Mariana Trench in the North ... ridge would then mark the boundary between the plates.

The trench is formed through tectonic plate movement, with the Pacific plate being forced under the Mariana plate in the ... a natural phenomenon but also a boundary for scientific research.

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.

Scientists at China's Beihang University developed a tiny morphable robot to explore the ocean's depths — and it's now taken a dive into the Mariana Trench. The team successfully demonstrated ...