What is the importance of Greenland in the nonfiction book, Your Inner Fish?

The eastern coast of Greenland was another location that was rich in fossil finds. Shubin headed many expeditions to this region and discovered many fascinating fossils that helped to tell the story that he knew was there. The Greenland eastern coast had long been a haunt of scientists seeking fossil evidence of ancient life and its link to man. Gunnar Save-Soderbergh made two important discovers in the region. One was called the ichthyostega, which did not contain the secrets of the origin of limbs; the other was the Acanthostega gunnari which did have flipper-shaped limbs with fingers and toes.