Just how cold can bees survive when winter hits?
If you've ever looked at a frozen garden in mid-January, you've probably wondered how cold can bees survive when everything else seems to be dormant or dead. It's a fair question because, unlike birds that fly south or bears that nap through the frost, bees have a much more complex—and active—way of dealing with the freezing temperatures. They don't just "tough it out" individually; they turn their entire hive into a high-tech heating system that would put some of our own insulation to shame. ...