Fig. 1.
Responses to long and short day lengths. Mean±SEM estimated testis volume (A) male body mass (B), male fur color (C) vaginal patency (D), female body mass (E) and female fur color (F) of hamsters maintained in LDs for 40 wks (LD), SDs for 40 wks (SD40) or transferred to SDs for 10 weeks beginning at wk 30 (SD10). *P<0.05 vs LD and **P<0.005 vs. LD.
