1. Fruit scent as an indicator of ripeness status in ‘bat fruits’ to attract ‘fruit bats’: chemical basis of chiropterochory

   • Valliyappan Mahandran
   • Haseeb Hakkim
   • Manjari Jain

   Original Paper 24 October 2022 Pages: 1 - 11

   

2. Altruistic behavior in mother-calf pairs of bottlenose dolphins (Tursiops truncatus) and the possible role of the social bond: a preliminary study

   • Bigiani Stefano
   • Nobili Caterina
   • Pilenga Cristina

   ORIGINAL PAPER 25 January 2023 Pages: 13 - 19

   

3. Underground environment increases the differentiation of personality traits between male and female plateau zokors (Eospalax baileyi)

   • Baohui Yao
   • Ibrahim M. Hegab
   • Junhu Su

   ORIGINAL PAPER 13 February 2023 Pages: 21 - 30

   

4. Interaction between vasotocin and gonadal hormones in the regulation of reproductive behavior in a cichlid fish

   • Olinda Almeida
   • Ana S. Félix
   • Rui F. Oliveira

   Original Paper 13 October 2022 Pages: 31 - 43

   

5. Changes in salivary cortisol and testosterone levels in male chimpanzees during the process of reunion with group members

   • Nobuyuki Kutsukake
   • Migaku Teramoto
   • Toshikazu Hasegawa

   ORIGINAL PAPER 10 February 2023 Pages: 45 - 58

   

6. Non-aggressive inter-group interactions in wild Northern Gray gibbons (Hylobates funereus)

   • Yoichi Inoue
   • Waidi Sinun
   • Kazuo Okanoya

   ORIGINAL PAPER 17 February 2023 Pages: 59 - 74

   

7. First report of visual displays in the Neotropical treefrog Dendropsophus carnifex

   • Emilia Peñaherrera-Romero
   • Diego F. Cisneros-Heredia

   SHORT COMMUNICATION 26 December 2022 Pages: 75 - 78

   

8. The unique case of marking behaviour in juvenile lynx

   • T. Mináriková
   • E. Belotti
   • L. Poledník

   SHORT COMMUNICATION Open access 07 January 2023 Pages: 79 - 85

   

9. A conceptual framework for the analysis of animal behaviour: an hierarchical script-episodes-gestures structure

   • David Eilam

   COMMENTARY 08 February 2023 Pages: 87 - 91