Why is penguins skin white and thick and why is there a thick layer of fat. Underneath?

Penguins have thick, white skin covered by a layer of blubber to insulate their bodies against cold temperatures in their icy habitats. The white coloration serves as camouflage in the water, blending with the bright surface when viewed from above, helping them avoid predators. The thick layer of fat not only provides insulation but also serves as an energy reserve, crucial for survival during harsh conditions and breeding seasons when food may be scarce.