We love penguins for lots of reasons: They walk around in tuxedos, they have a cute waddle, and they’re unique! And to show that we care, we observe National Penguin Day on January 20. While this day celebrates the penguins, it’s also a time to think about saving them. Many penguin colonies have been lost to climate change and it’s estimated that half the population of emperor penguins will vanish by the end of this century. We can start to help these endangered creatures by focusing on environmental issues.