[omnivore]

"...probably survived the extreme cold at the peak of the last Ice Age by living under the snow and eating lemmings..."

Wonder what the lemmings were eating.

Interesting point about whether they eat snakes. These stoats look like they're in the weasel and mongoose family. Mongooses will eat snakes, I don't know about weasels.

[Youngblood]

Stoats eat rabbits, mice, voles and so on. Haven’t come across any accounts of them eating snakes, but its possible. BBC Wildlife did a David Attenborough documentary on them called “Stoats in the Priory”. It is worth getting hold of to see diminutive stoats killing and dragging rabbits more than three times their size and weight back to their young!

And yes, stoats are weasels. Their North American subspecies is called the short-tailed weasel, or in northern regions where it undergoes winter whitening, the ermine.