Wolverine (Gulo gulo)

[brotherbear]

http://www.bbc.com/earth/story/20150421-...wolverines 
 
Wolverines are ferocious killing machines, yes, but there’s also some evidence that their hissy fits are just for show - a demonic display performed not as a precursor to a good lashing, but simply to scare away the threat, be it a bigger predator or a human. In short the wolverine often bluffs, exaggerating its fearsomeness.
It turns out wolverines have a history of having to watch their back. “Their life history is one of a scavenging carnivore, which means they feed on carcasses that are out there on the landscape,” says Fisher, adding that wolverines aren’t the only ones wanting a piece of the decaying action. Wolves, black bears, grizzly bears, raptors and cougars also like to saddle up to any rotting meat buffet.

Weighing 20-40 pounds (9-18 kg), wolverines are much smaller creatures than most of the predators they share habitat with, and so, says Fisher, naturally they need to exercise some discretion. “In nature, body size usually wins out.” Reply