From: Influence of photoperiod and running wheel access on the entrainment of split circadian rhythms in hamsters
LDLD 7:5:7:5
LDLD 8:4:8:4
LDLD 9:3:9:3
LDLD 10:2:10:2
LDLD 11:1:11:1
Skeletonsâ€
Wheels
0/11
1/11
2/11
4/11
6/11
5/11
Motion Detectors (PIRs)
3/11