RT Journal
A1 Torpy JM
T1 A hedgehog
JF JAMA
JO JAMA
YR 2009
FD June 24
VO 301
IS 24
SP 2531
OP 2531
DO 10.1001/jama.2009.645
UL http://dx.doi.org/10.1001/jama.2009.645
AB 
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.