M.L. East and H. Hofer, Conflict and Co-operation in a Female Dominated Society: A Re-assessment of the "Hyper-aggressive" Image of Spotted Hyenas.
C. ten Cate, H. Slabbekoorn, and M.R. Ballintijn, Bird Song and Male-male Competition: Causes and Consequences of Vocal Variability in the Collared Dove (Streptopelia Decaocto).
R.W. Byrne, Imitation of Novel Complex Actions: What Does the Evidence from Animals Mean?
L.J. Rogers, Lateralization in Vertebrates: Its Early Evolution, General Pattern and Development.
S.H. Hulse, Auditory Scene Analysis in Animal Communication.
P.K. Stoddard, Electric Signals: Predation, Sex, and Environmental Constraints.
T. Aubin and P. Jouventin, How to Vocally Identify Kin in a Crowd: The Penguin Model.
Contents of Previous Volumes.