, great white sharks have been considered the most fearsome predators in the ocean. But new research published this week shows that may not be the case.
Great white sharks are amazing hunters. They can grow up to 6 metres long and weigh more than 1.8 tonnes. But killer whales are even bigger, growing up to 9.1 metres long and weighing 4.53 tonnes or more.White sharks swim 56 km/h - faster than the world's fastest man, Jamaican sprinter Usain Bolt, can run. But killer whales swim just as fast, are stronger and hunt in groups, like wolf packs.
Jorgensen and Anderson compared the sharks' behavior to that recorded in 27 years of records compiled by researchers observing elephant seals, sea lions and killer whales at the Farallon Islands. The records were gathered by researchers at Point Blue Conservation Science, a non-profit group, and other organisations.
In the best-documented instance, killer whales from two separate pods arrived at the Farallons on November 2, 2009, when 17 previously tagged white sharks were present. The killer whales only spent two hours in the area. But the sharks bolted. Seven of them swam 80 kilometres south to Ano Nuevo Island, while others swam to Tomales Point, 56 kilometres north.
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killer whales kill them
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