Thankfully, while trying to come up with a plan B, a huge sixgill shark swam past. These deep sea specialists have highly attuned senses so we followed its lead through the gloom to a huge dust cloud.

Some deep sea creatures are enormous. A sixgill shark is as big as a great white. Others are absolutely tiny – the shrimp that live inside the intricate lattice of the Venus’ flower basket ...

Prehistoric 'living fossil' sharks such as bluntnose sixgill sharks, goblin sharks and frilled sharks also lurk in the depths. As part of the investigation, a sperm whale carcass was placed at the ...