When it comes to disappearing into winter landscapes, Minnesota’s weasels boast a distinct advantage. Like snow hares, they shed their brown summer fur for a snow-white coat. This survival adaptation, ...

Migration, hibernation and food storage are all responses to seasonal changes. As the days become shorter and the nights get longer, hormone changes trigger an animal's instinct to prepare for winter.

Recently, I had a chance to photograph a very interesting animal – the short-tailed weasel (Mustela erminea). Also called ermine, the short-tailed weasel is a tiny bundle of energy wrapped up in a fur ...