Emperor penguins change fur

Emperor penguins must undergo molting before obtaining smooth, fluffy coat with three characteristic colors.

Photographs of emperor penguins are molted by photographer Sergei Kokinskiy recorded on the island of South George, British overseas territory.

When immature, the light brown hairs cover more than two-thirds of an emperor's penguin's body.

The immature penguins are easy to detect when standing in the flock with other penguins.

To get a smooth coat like a parent penguin, the young penguins must undergo a molt process.

In the picture is an immature emperor penguin with brown hairs covering the chest, back and head.

During development, these feathers will gradually dissipate.The adult penguin will no longer have brown fur but will show off its characteristic three-colored coat.The head and back are black, the belly is white, the chest is light yellow and the ears are bright yellow.

Emperor penguins are the largest and heaviest bird of all penguins.Males and females have the same fur and size, the height reaches more than 120cm and weighs from 22 to 45kg.