My hamster looks bored in his cage. He's 2 years old -- should I introduce a new hamster in his cage to keep him company?
On a hamster's report card, the teacher always checks "does not play well with peers," as hamsters are solitary animals and prefer to live alone. Remember that hamsters are nocturnal animals, so they sleep all day and are active at night -- your "hammie" may not be as sedentary as you think. You are probably not watching him at his most active times.