sentence: Emperors live in the coldest climate on earth.
sentences_after: They live in large groups, called colonies, that can have up to 20,000 birds. They huddle close together to keep warm. Emperor penguins live for about 20 years, although some have been known to live for 40 years.
concept_name: emperor
headings: Emperor Penguin Life
categories: Penguins Animals of Antarctica