Golden hamster – Video Learning – WizScience.com agriculture animal models animal welfare Arabic body grooming cardiomyopathy circadian rhythms crepuscular Cricetinae delta-sarcoglycan dilated cardiomyopathy Eat ethology fixed action pattern gestation Hamster Wheel inbred strains Infanticide loss of habitat Michael Menaker Natural History Museum nocturnal reticulum sarcoma subfamily suprachiasmatic nucleus Syria turkey vulnerable Zoological Society of London 2016-06-19 admin