There are many sources where a person can find facts about penguins, including books on birds, National Geographic, on television shows like Discovery that feature different animals and the Smithsonian Magazine. Many of these sources and publications are also online. For example, emperor penguins are the biggest penguins with a height of about 45 inches and can weigh up to 88 pounds, reports the National Geographic.
Some other interesting facts on the emperor penguins are that they have a life span of about 20 years, and a group of these birds is called a colony. The gentoo penguin is the fastest swimmer of all the penguins with a speed of 22 mph, according to the Smithsonian Magazine.
There are about 20 species of penguins. The rockhopper penguin species tends to mate for life, while emperor penguins mate for a single season.