Emperor penguin

Emperor penguin

Penguins are birds living in the Antarctic and adapted to cold temperature and swimming.



penguin, penguin colony, emperor penguin, Antarctic, South Pole, breeding place, aquatic lifestyle, vertebrates, birds, predator, animal, biology

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  • Weight: 20–40 kg (44–88 lb)
  • Length: 90–110 cm (35–43 in)
  • flipper: a wing specialized for rowing

  • - The temperature of the arterial blood flowing into the leg is initially about 40 °C (104 °F). If this warm blood entered the feet, which are not insulated by any fat or feathers, it would lose a lot of heat. Heat loss is avoided because arteries carrying warm blood toward the feet run alongside veins carrying cool blood up from the feet. The cold blood flowing towards the heart absorbs heat from the arterial blood, and thus it is warmed, while the arterial blood flowing towards the feet cools down, thus the heat loss is reduced.

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