The Greenland shark is an inhabitant of the deep North Pole seas. However every once in a while, it is seen in Dutch waters. Greenland shark meat is toxic and can only be consumed when prepared in a special way. The skin of this shark is used to bind books. Greenland sharks are omnivores. Scientists have found the strangest food items it their stomachs, such as reindeer, dogs, cats and even a polar beer. These animals were probably already dead when the shark consumed them.