1. All 17 species of penguins are naturally found exclusively in the Southern Hemisphere.
2. Emperor Penguins are the tallest species, standing nearly 4 feet tall. The smallest is the Little Blue Penguin, which is only about 16 inches.
3. The fastest species is the Gentoo Penguin, which can reach swimming speeds up to 22 mph.
4. Penguins’ striking coloring is a matter of camouflage; from above, their black backs blend into the murky depths of the ocean. From below, their white bellies are hidden against the bright surface.