Very slender weasel with a flattened head and beady eyes. Fur is dark
brown, black tip on tail, and buffy underparts. Winter coat is snow
white with black-tipped tail, and is then called "ermine." Total
length 16 inches. There are about 36 different kinds of weasels in the
United States.
It is incredible that such a small body could contain such a remarkably
vicious nature as that of the weasel. Most animals kills for food, but
the long saber-sharp teeth of the weasel kill wantonly and apparently
just for the sake of killing. They first suck the warm blood from the
base of the skull or neck of their victim and then eat portions of its
meat and bones. They are quick and intelligent and can subdue animals
several times their size. They are quite common throughout the Park up
to timberline, and are so curious and unafraid that once seen, they may
be attracted by making various squeaks and sounds.