Inquiry into fatal leopard seal attack begins
The British Antarctic Survey has launched an investigation following a fatal attack on a marine scientist by a leopard seal.
Kirsty Brown, 28, was snorkelling about 25 metres from the shore near Rothera base when she was suddenly dragged under the surface. The shore cover team immediately called in a rescue boat, which reached the scene within 10 minutes, but the station doctor was unable to revive her.
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Rare attacks by the large and fierce-looking seals have been reported. In 1985, Scottish explorer Gareth Wood was bitten twice on the leg as a seal tried to drag him off the ice into the water. Wood's companions beat off the seal by repeatedly kicking it with the spiked crampons on their boots. Ernest Shackleton's record of his 1914-16 Antarctic expedition also records an attempted attack.
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Leopard seals (Hydrurga leptonyx) are large but slender seals, with big heads and jaws that give them a frightening, dinosaur-like appearance. They can be up to 3.4 metres (12 feet) long and weigh over 500 kilograms.
They are clumsy on land, but can swim at speeds up to 40 km/h (25 mph). Their main source of food is krill, but they also frequently eat smaller seals. Penguins and fish are less common prey. They are the only seals to regularly eat other seals and penguins.