mustelid comparison stoat weasel 1sq

Stoat (left) and weasel (right) - ventral (belly) view.

Stoats and weasels are often confused but distinguishing features include:

  • the line between brown and white fur along the underside is straighter on stoats and patchy / wavy on weasels
  • stoats have a black tip on their tails, whereas weasels do not
  • stoats' tails are proportionately longer than those of weasels, whose tails are barely longer than their hind legs.

Photograph: by Ken Wright