Whereas the largest are fairly well researched, knowledge of the fisher, wolverine , river otter, mink, lynx, bobcat, and raccoon is almost entirely from anecdote.
The bear, wolf, coyote, fisher, wolverine , otter, and lynx prey upon the beaver who is, nevertheless, a powerful antagonist when at bay.
It's the mascot of the University of Michigan's college football team, but it's unlikely you'll see a wolverine in the Wolverine State - or most of the rest of the country, for that matter.
Pugnacious, bold, and curious, like other weasels, the wolverine is omnivorous and consumes a wide range of edible roots and berries, small game, and fish.
The researchers discovered shards of bone from mammoths, musk ox, brown bear, wolverine , rhinoceros, hares, bison, horses, reindeer, and cave lion.
Predators of erethizontids include mustelids such as martens, minks, wolverines , ermine, weasels, and fishers.
Roads fragment wildlife habitat, eliminating creatures that require big tracts of undeveloped land such as forest birds, elk, caribou, lynx, wolves, wolverines , and grizzlies.
Brown and black bears, wolves, wolverines and mountain goats roam the mountains, while millions of migratory birds rest and feed along mudflats and estuaries.
Especially vulnerable are large, far-ranging carnivores like grizzly bears, mountain lions, panthers, wolverines , and lynx - animals that may travel 100 miles in just a few days.
Fishers are among the least understood of the weasel family, or mustelids, which also includes martens, minks, ermines, ferrets, badgers, otters, and wolverines .