Hello, I have formica species. They are inactive but alive, and I am wondering if they are attempting to hybernate? We have had a few frosts outside, and i noticed they are not roaming or eating the past few weeks. Rather, they are all nestled together with the queen. This is my first ant farm, and I do not want to hurt them. I have searched the forum but cannot find any topics other than 'problems' with hybernation. Any help would be appreciated.