Fig. 5From: Polymorphism of winter phenotype in Siberian hamster: consecutive litters do not differ in photoresponsiveness but prolonged acclimation to long photoperiod inhibits winter moltLittermates of Siberian hamsters presenting different winter phenotypes. Left one remained grey and never used daily torpor, whereas right one molted to white and used daily torpor. Picture was taken after 14 weeks under short photoperiod (8L:16D)Back to article page