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'Communities' of extreme life seen for first time in deep ocean
A Chinese-led research team captures pictures of life at depths of more than 9km in the northwest Pacific Ocean.
Beds of clams, mats of bacteria that look like ice and fields of tube worms - these are just some examples of the strange, extreme life that an expedition to the deepest parts of the ocean has observed, filmed and photographed. "It's exciting - especially for a deep sea scientist - to go to a place that human beings have not explored," one of the lead researchers, Dr Xiaotong Peng, told BBC News. Prof Andrew Sweetman, a senior scientist from the Scottish Association for marine science told BBC News that the discovery showed that whole "ecosystems driven by methane may exist in the deepest parts of the ocean".
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