Nest defence and offspring provisioning in a cooperative bird: individual subordinates vary in total contribution, but no division of tasks among breeders and subordinates Niki TeunissenSjouke A. KingmaAnne Peters Original Article 02 July 2020 Article: 94
Variation in carotenoid-containing retinal oil droplets correlates with variation in perception of carotenoid coloration Eleanor M. CavesLorian E. SchweikertSönke Johnsen Original Article Open access 29 June 2020 Article: 93
Worker propensity affects flexible task reversion in an ant Hiroyuki ShimojiNana KasutaniMasaru K Hojo Original Article 27 June 2020 Article: 92
A mathematical model of social selection favoring reduced aggression Yasuo Ihara Original Article 26 June 2020 Article: 91
Variation in the sex ratio of pouch young and adult hairy-nosed wombats (Lasiorhinus latifrons and Lasiorhinus krefftii) Matt GaughwinAlan HorsupDavid Taggart Original Article 22 June 2020 Article: 90
Competitive ability determines coalition participation and partner selection during maturation in wild male chimpanzees (Pan troglodytes schweinfurthii) Drew K. EnigkMelissa Emery ThompsonMartin N. Muller Featured Student Research Paper 22 June 2020 Article: 89
Lack of consistent responses to aircraft noise in dawn song timing of bird populations near tropical airports Renata D. AlquezarRegina H. MacedoDiego Gil Original Article 19 June 2020 Article: 88
Influence of past and current social contexts on hunting behaviour in spiderlings Violette ChiaraRaphaël Jeanson Original Article 17 June 2020 Article: 87
An experimental test of changed personality in butterflies from anthropogenic landscapes Aurélien KaiserThomas MerckxHans Van Dyck Original Article 17 June 2020 Article: 86
The web architecture of Latrodectus hesperus black widow spiders (Araneae: Theridiidae) shows genetic variation and sexual dimorphism, but no plasticity according to the experience of the site of prey capture Clinton SergiCory ThompsonRafael L. Rodríguez Original Article 17 June 2020 Article: 85
Male care status influences the risk-taking decisions in a glassfrog Anyelet Valencia-AguilarDomingos de Jesus RodriguesCynthia P.A. Prado Original Article 16 June 2020 Article: 84
Challenges of dehydration result in a behavioral shift in invasive toads Carla B. MadelaireAdriana M. G. BarsottiJohn Measey Original Article 14 June 2020 Article: 83
Duration of female parental care and their survival in the little auk Alle alle - are these two traits linked? Katarzyna Wojczulanis-JakubasMarina Jiménez-MuñozEleni Matechou Original Article Open access 12 June 2020 Article: 82
Female dispersal patterns influenced by male tenure duration and group size in western lowland gorillas Marie L. ManguetteAndrew M. RobbinsMartha M. Robbins Original Article Open access 11 June 2020 Article: 81
Mating with sexually attractive males provides female Gryllus firmus field crickets with direct but not indirect fitness benefits Clint D. KellyÉloïse Adam-Granger Original Article 09 June 2020 Article: 80