The two visual pigments of the gecko: The labile behavior Frederick Crescitelli OriginalPaper Pages: 121 - 129
The coding of auditory signals in the torus semicircularis of the fire-bellied toad and the grass frog: Responses to simple stimuli and to conspecific calls Wolfgang Walkowiak OriginalPaper Pages: 131 - 148
Sympathetic nervous control of the iris sphincter of the atlantic cod,Gadus morhua Stefan Nilsson OriginalPaper Pages: 149 - 155
Selective and differential avoidance learning in the feeding and withdrawal behavior ofPleuobranchaea californica W. J. DavisJ. VilletErica Prince OriginalPaper Pages: 157 - 165
The evaluation of electroreceptive feedback in a gymnotoid fish with pulse-type electric organ discharges Walter Heiligenberg OriginalPaper Pages: 173 - 185