This is what it looks like when a camera-shy octopus just does not want its portrait taken. The poor thing was probably fed up with all the divers firing their flashes at him.
Diving partners David Malvestuto and Warren Murray were about 24 metres below the surface of Bluefish Cove in Carmel, California, when the angry sea-creature emerged ready to tussle. It grabbed hold of the gear, but once Murray started snapping pics, the flash freaked out the aggressive cephalopod and it swam away.
The above video is great—total silence except for the sound of breathing—and the shots Murray managed to get are incredible. Jules Verne would be impressed.