A Hedgehog
- Janet M. Torpy, MD
Since this article does not have an abstract, we have provided the first 150 words of the full text.

Hans Hoffmann (circa 1530-1592), A Hedgehog, before 1584, German. Watercolor and gouache on parchment. 20×29.8 cm. Courtesy of The Metropolitan Museum of Art (http://www.metmuseum.org/home.asp), New York, New York; purchase, Annette de la Renta gift, 2005 (2005.347). Image ©The Metropolitan Museum of Art.
Tiny and spiny, hedgehogs still roam their native territories of Europe and Asia. Their omnivorous—though lactose-intolerant—nature allows for a variety of habitats, but hedgehogs prefer nocturnal burrowing and seeking sheltered spots underneath piles of leaves. Their quills, the prominent feature of the minuscule body, are primarily filled with air spaces; the spines seem ferocious, in order to ward off potential predators. Another quilled mammal, the porcupine, is a rodent and therefore not intimately related to the hedgehog: moles and shrews are the hedgehog's closer cousins.
At the other end of the scientific spectrum from pure comparative biology exists a blend of nature and magic, all of which …








