DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Husky sled dog puppies. This breed of domestic dog (Canis familiaris) is used in teams to pull sledges in Arctic snow. The dogs can pull the sledge at about the pace of a running man. This is a commonly used form of transport in Arctic regions. Photographed in March in Wapusk National Park, Manitoba, Canada.
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