It said the "Killer Whale" has a dual diesel and electric propulsion ... be independently deployed and carry out patrols, anti-submarine operations and air defence work as well as rescue operations.

Brodsky’s footage shows them in sub-groups over a submarine canyon as close as six miles from shore. He was with Tomoko Shimotomai and Colleen Talty of the California Killer Whale Project ...

It has a supercharged 260 horsepower engine and is designed to look like a killer whale. Rides last 15, 20, or 30 minutes and are available from £75. Predator Adventures also sell Seabreachers ...

Hammacher Schlemmer is out with a bunch of luxury toys for the 2013 holiday season, including a $200,000 fire-spewing "Batmobile" replica, a $90,000 submarine that mimics a killer whale ...