Fig. 1From: Polymorphism of winter phenotype in Siberian hamster: consecutive litters do not differ in photoresponsiveness but prolonged acclimation to long photoperiod inhibits winter moltExperimental design. Siberian hamsters were divided into four groups differing in time of birth (1st or 3rd litters) and duration of acclimation to long photoperiod (3 or 5 months). See Methods for detailsBack to article page