http://www.nytimes.com/2016/06/14/science/weasels-are-built-for-the-hunt.html
“After eating the residents, the weasel lines its new dwelling [mice’s little dome-shaped nests under the snow] in rodent fur to improve insulation.”
Aren’t weasels a full two notches below porcupines on the Might scale?
“The fisher, a particularly fearless weasel in the marten branch, may be the only North American carnivore to have mastered the art of dining on adult porcupine.”