A new study analyzes the evolutionary history of 11 deep-sea species from environments stretching from the central Indian ...

Scientists sampled fish living in the Pacific's Mariana Trench and trenches in the Indian ... including snailfish, cusk-eels and lizardfish that live in the hadal zone — the region about 19,700 ...

Led by the Mariana Trench Environment and Ecology Research ... when different fish lineages first ventured into the deep sea. Eels may have moved down some 100 million years ago, possibly avoiding ...