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Penguins rearrange their feathers by preening. To conserve heat, penguins may tuck in their flippers close to their bodies. They also may shiver to generate additional heat. A well defined fat layer improves insulation in cold water, but probably is not enough to keep body temperature stable at sea for long.​

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Animals

Paw Print

Penguins diving into water

Adaptations

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Swimming

Penguins may spend several months at a time at sea, only coming ashore for breeding and molting. The Fiordland crested penguins occasionally grow barnacles on their tails — an indication that they are at sea for long periods.

Earlier estimates of swimming SPEEDS were TAKEN from observations of penguins swimming alongside moving ships, a method that proved to be unreliable.

Emperors have been observed swimming 14.4 kph (8.9 mph), though they normally do not exceed 10.8 kph (6.7 mph.).

King penguins have been recorded with a maximum swim speed of 12 kph (7.6 mph), ALTHOUGH they typically swim from 6.5 to 7.9 kph (4 to 4.9 mph.).

Adélie penguins probably reach maximum burst speeds of 30 to 40 kph (18.6 to 24.8 mph), but typically swim at about 7.9 kph (4.9 mph.). When swimming, an Adélie penguin can ACCELERATE enough to leap as high as 3 m (9.8 FT.) out of the water onto an ice floe.

Little penguins swim slower at about 2.5 kph (1.6 mph.).



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