1. Human sociobiology: Pair-bonding and resource predictability (effects of social class and race)

   • James D. Weinrich

   OriginalPaper 01 June 1977 Pages: 91 - 118

2. Geotropism of hornet comb construction under persistent acceleration

   • Jacob Ishay
   • Dror Sadeh

   OriginalPaper 01 June 1977 Pages: 119 - 129

3. Organizational systems and dominance in feral horses in the Grand Canyon

   • Joel Berger

   OriginalPaper 01 June 1977 Pages: 131 - 146

4. Foraging behavior of ants: Experiments with two species of myrmecine ants

   • Fritz Taylor

   OriginalPaper 01 June 1977 Pages: 147 - 167

5. Refraction and the spitting behavior of the archerfish (Toxotes chatareus)

   • Lawrence M. Dill

   OriginalPaper 01 June 1977 Pages: 169 - 184

6. Die Bedeutung des Sekretes der Tergittaschendrüsen für die Attraktivität der Bienenkönigin gegenüber jungen Arbeiterinnen

   • Günther Vierling
   • Maximilian Renner

   OriginalPaper 01 June 1977 Pages: 185 - 200

7. Measurement of nest cavity volume by the honey bee (Apis mellifera)

   • Thomas Seeley

   OriginalPaper 01 June 1977 Pages: 201 - 227