REPORTS A SERIES OF EXPERIMENTS WITH 204 GERBILS AND 51 MICE. THE GERBIL APPEARS TO BE DEFICIENT IN DEPTH PERCEPTION. WHEREAS C57BL/6J MICE SHOW A PREDOMINANCE OF SHALLOW RESPONSES ON A VISUAL CLIFF (E.G., 100% OF INITIAL RESPONSES ARE TO THE SHALLOW SIDE), GERBILS SHOW RANDOM BEHAVIOR (E.G., 56% OF INITIAL RESPONSES ARE TO THE SHALLOW SIDE). GERBILS ARE NOT BLIND, HOWEVER, AS THEY SHOW A STRONG
... [Show full abstract] PREFERENCE FOR DARKNESS WHEN ALLOWED A CHOICE, AND THEIR CIRCADIAN ACTIVITY CYCLE CAN BE READILY ENTRAINED WITH THE LIGHT CYCLE. (PsycINFO Database Record (c) 2012 APA, all rights reserved)