National Narwhal Day, also known as National Narwhal Appreciation Day, is celebrated on April 22nd to raise awareness about narwhals, often referred to as "unicorns of the sea." These unique creatures inhabit the cold waters of the Arctic Ocean and are currently listed as animals of "special concern" due to climate change impacts. The day encourages individuals to learn more about narwhals, including their distinctive tusks, which are actually teeth filled with nerve endings. People are urged to support conservation efforts through donations or by adopting narwhals from organizations like the World Wildlife Fund and the Narwhal Rainbow Alliance. Celebrants are also encouraged to spread awareness on social media and make environmentally friendly choices to help protect these marine mammals and their habitats.