Incredible moment killer whales hunt and kill a tiger shark - Daily Mail

The footage, believed to be a world-first, shows three killer whales (bottom right) working as a team to force the panicked shark (top right) to the surface off the coast of Costa Rica. The gang wear it down and take opportunistic bites at its fins, until a large bull moves in to deliver the death blow, flipping the shark on to its back in the process (left). This created a state of paralysis known as 'tonic immobility'. The pod then took turns at eating and stripping the 7ft (2.1 metres) shark down to its