Environment
Hunters of the seas become the hunted
Sharks' dislike of very deep water 鈥� beyond about 3000 metres 鈥� may be threatening their very survival
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Sharks' dislike of very deep water 鈥� beyond about 3000 metres 鈥� may be threatening their very survival
Dancing viperfish, spinning rings of plankton and seven-metre-high corals 鈥� just about every journey into the abyss reveals more surprises