1: The average paw size of a wolf is four inches wide by five inches long
2: A wolf has 42 teeth
3: The average travel speed of a wolf is 5 mph
4: Wolves can survive on 2.5 pounds of food per day, but require about five pounds per day to reproduce successfully.
Facts 1 through 4 can be found here:
5: Wolves in the Arctic have to travel much longer distances than wolves in the forest to find food and will sometimes go for several days without eating.
6: Wolves are excellent hunters and have been found to be living in more places in the world than any other mammal except humans.
7: The wolf is the ancestor of all breeds of domestic dog. It is part of a group of animals called the wild dogs which also includes the dingo and the coyote.
8: Wolf pups are born deaf and blind while weighing around 0.5 kg (1 lb). It takes about 8 months before they are old enough to actively join in wolf pack hunts.
Facts 5 through 8 can be found here:
http://www.sciencekids.co.nz/sciencefac ... /wolf.html
EDIT: I found some more wolf facts so here you go!
9: Wolves typically hunt within territories, ranging from 50 to 1,000 square miles.
10: On average, gray wolves will eat 20 to 30 pounds of meat in one meal, but have also been known to go up to 14 days between meals with no ill effects.
11: There are five subspecies of gray wolves in North America. Their coat colors can range from pure white to brown, gray, cinnamon or black.
12: Gray wolves are carnivores that usually prey on ungulates much larger than themselves, such as elk, deer or moose, but will also eat smaller mammals such as beaver, rabbit or livestock.
Facts 9 through 12 can be found here:
https://www.worldwildlife.org/blogs/goo ... ray-wolves