Pangolins, also known as scaly anteaters, are the only known mammals in the world to sport scales. But humans are eating them and using their scales for their perceived medicinal value, and now all eight pangolin species are nearing extinction.Just a few days ago, officials in Vietnam found 1.4 tons of dried pangolin scales in a cargo ship from Africa, where four of the species are found, according to Scientific American.The other four are found in Asia, where the appetite for pangolin meat and scales appears strongest. Actually an estimated one million wild pangolins have been killed in the past decade alone, meaning they're the most-trafficked group of species anywhere in the world.