"Conclusion: it is obvious that hamsters are breeding poorly and even dying because of some unknown causes, but this "study" can't tell anything about this causes"
The "control group of hamsters" being five couples is very reassuring. They can't possibly be wrong, with a sample of such epic proportions!
The original article goes on to say that "hair grew in the mouth of animals", and so on, all to 'suggest' a big government-sponsored research programme. These guys may need jobs badly, but this is just sad. Russia currently is living through a wave of blatantly bad science, on the scale of U.S. religious superstition wave. (look up one "Петрик")
"Conclusion: it is obvious that hamsters are breeding poorly and even dying because of some unknown causes, but this "study" can't tell anything about this causes"