Emperor penguin

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The Emperor penguin (Aptenodytes forsteri) is the world's largest species of penguin, and one of the world's largest birds. It may grow to 1.2m (4 ft) high and weigh up to 40kg (88lb).

Like all penguins, it is flightless but a good swimmer. It is confined to Antarctica, where its habitat is threatened by the melting of the ice cap, leading to fears that it will be extinct by 2100.

The egg is generally hatched by the father rather than the mother; he keeps it on the top of his feet for warmth. Hatching takes on average 64 days. Once the chick is born, it is initially fed by the male but eventually the mother returns to take over the care.