Emperor penguins are very social animals. They withstand the long Antarctic months by huddling together in large circles to stay warm. Individual penguins take turns standing on the outer edge of the circle so other penguins can get warm. Their social skills are also demonstrated during breeding, when the male and female penguins take turns warming a penguin egg while the other takes the long journey to the sea to find nourishment.

Select the correct answer.
Look for a detail that supports the main idea.
Main idea: Emperor penguins are very social animals.