Erethizontidae Gallery

AN AUSTRALIAN ECHIDNA WALKS ACROSS A TRACK IN SYDNEY

An echidna, native to Australia, casts a shadow as it walks over a track in
Sydney's Taronga Zoo August 4, 2003. Scientists say that the echidna, which
has been called a freak of nature, has often been the victim of mistaken
identity with the hedgehog and North American spiny porcupine but is in fact
one of the world's clearest examples of Convergent evolution - the emergence
of chance look-alikes. FOR RELEASE WITH FEATURE
BC-SCIENCE-AUSTRALIA-HEDGEHOGS NO RIGHTS CLEARANCES OR PERMISSIONS ARE REQUIRED FOR THIS IMAGE REUTERS/David Gray
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Aerial Porcupine Caribou herd migrating leaving

Aerial Porcupine Caribou herd migrating leaving trails deep into the ground of fragile tundra (this coastal plain is threatened by potential oil and gas development from the expanding Prudhoe Bay Oil fields) Alaska's Arctic National Wildlife Refuge (ANWR). Aerial image of Porcupine Caribou herd migrating in Alaska's Arctic National Wildlife Refuge (ANWR)

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Cedar bark pouch decorated with glass beads obtained from Russian traders and dentolis

Cedar bark pouch decorated with glass beads obtained from Russian traders and dentolis shell from trade with the Northwest Coast.It is also embroidered with dyed porcupine quills. Country of Origin: USA/Canadian subarctic region. Culture: Athapascan. Date/Period: 18th C. Place of Origin: Western subarctic. Credit Line: Werner Forman Archive/ University Museum, University of Alaska. Location: 11

© Werner Forman Archive / Heritage-Images