I hate to burst your bubble about the eco system but the wolves that have been “re-introduced” to that area are not the indigenous wolves that used to live there. They are Canadian timberwolves. Huge animals up to 200 lbs and much more aggressive than the orginal gray wolf. They kill for sport not just to eat and they are wiping out the Elk herds bigtime. They are also killing hunting dogs and attacking people. They need to be removed.
The record Mackenzie Valley Wolf, the subspecies (re)introduced into Yellowstone, weighed 175 pounds. Males weigh from 120 to 170 pounds.
The Northern Rocky Mountain Wolf subspecies, the one extirpated in the Yellowstone region, is on average somewhat smaller, weighing generally 75 to 135 pounds.
If they were available, I certainly think they should have reintroduced the original subspecies.