'...To illustrate, begin with a classic case that took place in Wood Buffalo National Park, Alberta, Canada, in 1951. Two buffalo bulls and two cows are lying in the grass ruminating. Three of them are in good health; one cow is lame. Wolves approach and withdraw a number of times, apparently put off by a human observer. At each approach, though, the lame cow becomes agitated and begins looking all around. Her three companions ignore the wolves. When one wolf comes within twenty-five feet, the lame cow gets up on shaking legs to face it alone. It seems clear that prey selection is something both animals play a role in.'
Barry Lopez (1945 - ), United States
from The Bedside Book of Beasts - A Wildlife Miscellany -
by Graeme Gibson