Narwhals, known to some as the unicorns of the sea, are some of the earth’s most intriguing creatures. This infographic illustrates several interesting facts about these marine mammals. It begins by describing the narwhal’s natural habitat—the Arctic Ocean. It also explains narwhal anatomy, including its size and weight. The infographic goes on to describe the animal’s feeding patterns and how much food they digest each season. It also explains the history of the narwhal’s unique “horn,” which is similar to that of a unicorn. As the graphic notes, the narwhal horn was sometimes passed off as a unicorn horn and sold for exorbitant amounts to rich people and rulers.