Source google image: https://i1.rgstatic.net/publication/276287527_Food-Anticipatory_Activity_in_Syrian_Hamsters_Behavioral_and_Molecular_Responses_in_the_Hypothalamus_According_to_Photoperiodic_Conditions/links/5555e21208ae980ca60bd5f2/largepreview.png
Puzzle fr france2
Source google image: https://i1.rgstatic.net/publication/276287527_Food-Anticipatory_Activity_in_Syrian_Hamsters_Behavioral_and_Molecular_Responses_in_the_Hypothalamus_According_to_Photoperiodic_Conditions/links/5555e21208ae980ca60bd5f2/largepreview.png