Because they get cold and shiver.
They do it to conserve and share body heat.
They huddle to radiate heat through snowstorms. For eggs to hatch heat is needed.
It huddle with the other emperor penguins.
Emperor penguins keep warm using the FEATHERS on their body to keep warm, not the FUR on their bodies. Penguins are birds, they don't have fur! They also keep warm by grouping themselves together in a big, well, group!
They can and will if they're weathering out a storm out in the open. But they huddle together like horses will, not like penguins do.
They Huddle Together
they huddle together
Penguins protect themselves from predators by forming large groups called colonies, where they rely on safety in numbers. They are also fast swimmers, able to outmaneuver many of their predators in the water. When on land, penguins may huddle together and use their sharp beaks and flippers to defend against threats.
They huddle to keep each other warm during the winter
Penguins huddle together for mutual protection against the cold wind.
Penguins huddle together to keep warm.Somewhere in the group huddle, Tiny Tim yelled "I can't breathe!"
they huddle together or waddle away