The Pangolin, otherwise known as the scaly anteater, is the only mammal in the world to be covered from head to toe in keratin scales. However, they are not actually related to Anteaters or Armadillos at all - dogs, cats and bears are closer relatives. In this episode Luca and Melua are on a conservation mission to find out all they can about the Pangolin - which is one of the most endangered creatures in the world.