Weasel
There are three species of weasel in North America: The least weasel, the short-tailed weasel, and the long-tailed weasel. The long-tailed weasel is the most widespread throughout the United States (with the exception of Alaska), while the least and short-tailed weasels are restricted more to the northern parts of North America.
Class: Mammalia
Order: Carnivora
Family: Mustelidae
Genus: Mustela
Species: M. frenata (Long-tailed Weasel), M. nivalis (Least Weasel), M. ermina (Short-tailed Weasel)
Common Names: Weasel, Stoat, Ermine (with white winter coat)
Weasels usually live in dens that are typically abandoned chipmunk holes. They are voracious predators, and even attack animals much larger than themselves. Weasels eat mice and other rodents, rabbits, birds, eggs, reptiles, fish, and even earthworms and insects.
Gestation lasts about 10 months, and baby weasels are born blind, deaf, and without teeth. Eyes open after five or six weeks, and they are fully weaned at around 12 weeks. Females raise the young, while males play no part in parenting.
Weasels are slender, agile mammals, typically with red or brown fur above and white below. Their tail tip is usually black (with the exception of the least weasel), and the feet of the least and short-tailed weasel are white, while those of the long-tailed weasel are usually brown.
In winter, weasels in the northern parts of their range will develop an all-white fur coat, though the black tip of the tail remains. These white furred weasels are usually referred to as “ermine”.
The body length of the short and long-tailed weasels is about one foot in length. The tail of the short-tailed weasel is usually around four to five inches, while that of the long-tailed weasel can be as long as eight inches. The least weasel is much smaller, with a body length of five to ten inches and a tail that doesn’t grow longer than three and a half inches.
Throughout history weasels have had a wide range of cultural symbolism. To Greeks, weasels symbolized bad luck or evil.
Some Native American cultures believed the weasel to be a bad omen. Other cultures, like the Inuit, believe the least weasel to be a heroic symbol of wisdom and courage.
Among English speakers, the term “weasel” is used to describe someone who is sneaky, underhanded, and not trustworthy.
All three species of weasels in North America are listed as “Least Concern”, meaning there is no immediate threat to their existence. The least weasel has a very wide range across Europe and Asia, where it is common, but it is found in less abundance in North America. The short-tailed weasel is also found in Europe and Asia in addition to North America, while the long-tailed weasel is only found in North America and South America.