He was rowing across the loch around midnight to service the camera on the other side, and this thing came up beside the boat' ...

The photographs, which are of deceased creatures brought up from the deep, were shot by famed underwater photographer Norbert Wu. The drawings, by celebrated marine artist Richard Ellis ...

Every so often, unidentified creatures wash up on our beaches. With only 20 per cent of the ocean explored, do these mysterious bodies belong to an undiscovered species?