The gray wolfs progenitors probably first evolved in Eurasia 800,000 years ago, spreading to North America via the Bering land bridge 300,000 - 400,000 years ago.
Once in North America, the gray wolf coexisted with the much larger and more powerful Dire wolf until its extinction 8,000 years ago.
Gray Wolf | Red Wolf | Eastern Wolf | Himalayan Wolf | Indian Wolf Ethiopian Wolf | Golden Jackal | Maned Wolf | Falkland Islands Wolf The gray wolf is the largest wild canid, usually weighing between 70 and 120 lbs.
varying from the brawny black wolves of Canadas Mackenzie River to the petite tawny wolves that once roamed the Falkland Islands.
A gray wolfs tail is straight and usually hangs to its hock (knee).
Gray wolves have noticeably larger heads than other canids, which is often attributed to their high level of intelligence.
For as long as we have maintained our fascination with them, we have also been trying to classify them.
Today we recognize nine distinct species of wolf (one of which humans drove to extinction in 1879 and one with an odd name) spread over six continents.