We've seen a 90 percent decline in most penguin species around the world.

Unfortunately, 15 of the 18 penguin species are currently listed as threatened, near-threatened, or endangered by the International Union for Conservation of Nature. In the last several decades, we have seen the world populations of most penguin species decline by up to 90%, with two of them, the Yellow-eyed and Galapagos penguins, down to just a few thousand birds. Penguins are an indicator species, the proverbial "canary in the coal mine." Simply put, if penguins are dying, it means our oceans are dying.