A certain we4ll known hamster fan on this forum has just been told by his landlord that the only animals that he can keep in his flat are fish. As a well known hamster lover this presents him with a problem..........how many generations of interbreeding does it take to breed hamsters with gills? I know there are several learned geneticists on mudcat with personal experience of breeding close to the genetic "edge".....i.e.cousins.....any advice? A whole genus of hampsters could be under threat here!!!!!