Weasels, otter, and mink, oh my! The Mustelidae is a family that includes living slinkys and sliders: the long-tailed weasel (Mustela frenata), ermine or short-tailed weasel (Mustela erminea), least weasel (Mustela nivalis), mink (Mustela vison), and river otter (Lutra canadensis). These slender, long-bodied, short-legged mammals have a distinct bounding track pattern, which can be punctuated,…