Assertion: porcupine caribou | /r/HasProperty | r. t. granti
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text: Porcupine caribou's (R. t. granti) 1,500 miles (2,400 km) annual land migration between their winter range in the boreal forests of Alaska and northwest Canada over the mountains to the coastal plain and their calving grounds on the Beaufort Sea coastal plain, is the longest of any land mammal on earth.
text: Two subspecies are found only in North America: the Porcupine caribou (R. t. granti) and the Peary caribou (R. t. pearyi).
text: The more northerly caribou include three subspecies in North America; the Porcupine caribou (R. t. granti), the barren-ground caribou (R. t. groenlandicus), and the Peary caribou (R. t. pearyi).
text: It is a mature male Porcupine caribou R. t. granti from Alaska although it has been used without proper captioning in many places and without respect to geography.
text: If you click on the photo of the Male Porcupine caribou R. t. granti in Alaska you will reach Wikimedia with Dean Biggins of the U.S. Fish and Wildlife Service as photographer.