Especially in this weather. Rats don’t like hot weather, and have been shown to have a form of Seasonal Affective Disorder making them depressed in summer, because of the longer days.
Our rat room is one of the coolest rooms in the house but even so it’s been warm in there for the last week or so. The rats have big bowls of water, regular top-ups of ice cubes (often with frozen fruit or veg) and frozen granite blocks, as well as a cool air blower. They seem to be coping ok.
They also now have their 16″ Tic Tac wheel, and the Snork Maiden decided yesterday was the perfect day to start using it. One of the hottest days of the year so far, and she decides to start running!