1. Emergence of games from ecological trade-offs: longevity changes strategies for extra-pair mating in birds

   • Agnieszka Rumińska
   • Sigrunn Eliassen
   • Christian Jørgensen

   Original Article Open access 21 November 2023 Article: 127

   

2. Learning without a brain: classical conditioning in the ophiuroid Ophiocoma echinata

   • Julia C. Notar
   • Madeline C. Go
   • Sönke Johnsen

   Original Article 21 November 2023 Article: 126

   

3. Are sentinels rewarded by their groupmates? A study in a cooperative breeder

   • Roni Ostreiher
   • Roger Mundry
   • Aviad Heifetz

   Original Article 17 November 2023 Article: 125

   

4. No evidence of sex ratio manipulation by black-throated blue warblers in response to food availability

   • Sara A. Kaiser
   • Kathryn C. Grabenstein
   • Michael S. Webster

   Original Article 17 November 2023 Article: 124

   

5. Cooperative parental performance at chick provisioning in a small passerine, the Reed Warbler Acrocephalus scirpaceus

   • Katarzyna Wojczulanis-Jakubas
   • Justyna Płóciennik
   • Lucyna Hałupka

   Original Article Open access 15 November 2023 Article: 123

   

6. Time allocation to balance group living trade-offs in Ethiopian wolves

   • Elisa Sandoval-Serés
   • James Foley
   • Jorgelina Marino

   Original Article Open access 15 November 2023 Article: 122

   

7. Maternal predation risk during pregnancy alters various social behaviors in the offspring of Brandt’s voles

   • Ruiyong Wu
   • Wei Wang
   • Shengmei Yang

   Original Article 14 November 2023 Article: 121

   

8. Intraspecific color diversity and camouflage associated with ontogeny in an insular land crab

   • Marcio C. A. João
   • Rafael C. Duarte
   • Marcelo A. A. Pinheiro

   Featured Student Research Paper 02 November 2023 Article: 120

   

9. Individual and collective cognition in social insects: what’s in a name?

   • James F.A. Traniello
   • Aurore Avarguès-Weber

   Review 26 October 2023 Article: 119