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| Open AccessThe evolution of strongly-held group identities through agent-based cooperation
- Roger M. Whitaker
- , Gualtiero B. Colombo
- & Yarrow Dunham
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| Open AccessPreverbal infants expect agents exhibiting counterintuitive capacities to gain access to contested resources
- Xianwei Meng
- , Yo Nakawake
- & Harvey Whitehouse
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| Open AccessEgg-trading worms start reciprocation with caution, respond with confidence and care about partners’ quality
- Maria Cristina Lorenzi
- , Dáša Schleicherová
- & Alice Araguas
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| Open AccessProcessing of novel food reveals payoff and rank-biased social learning in a wild primate
- Charlotte Canteloup
- , Mabia B. Cera
- & Erica van de Waal
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| Open AccessGibbon strategies in a food competition task
- Alejandro Sánchez-Amaro
- , Robert Ball
- & Federico Rossano
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| Open AccessCooperation among unrelated ant queens provides persistent growth and survival benefits during colony ontogeny
- Madeleine M. Ostwald
- , Xiaohui Guo
- & Jennifer H. Fewell
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| Open AccessA combined RAD-Seq and WGS approach reveals the genomic basis of yellow color variation in bumble bee Bombus terrestris
- Sarthok Rasique Rahman
- , Jonathan Cnaani
- & Heather M. Hines
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| Open AccessCooperation in spatial public good games depends on the locality effects of game, adaptation, and punishment
- Isamu Okada
- , Hitoshi Yamamoto
- & Fujio Toriumi
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| Open AccessCooperative partner choice in multi-level male dolphin alliances
- Livia Gerber
- , Samuel Wittwer
- & Michael Krützen
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| Open AccessEgoistic punishment outcompetes altruistic punishment in the spatial public goods game
- Juan Li
- , Yi Liu
- & Haoxiang Xia
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| Open AccessAnalysis of dynamic networks based on the Ising model for the case of study of co-authorship of scientific articles
- V. Andrea Hurtado-Marín
- , J. Dario Agudelo-Giraldo
- & Elisabeth Restrepo-Parra
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| Open AccessBumble bee queens activate dopamine production and gene expression in nutritional signaling pathways in the brain
- Ken Sasaki
- , Kakeru Yokoi
- & Kouhei Toga
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| Open AccessNesting of Ceratina nigrolabiata, a biparental bee
- Michael Mikát
- , Eva Matoušková
- & Jakub Straka
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| Open AccessDistinct chemical blends produced by different reproductive castes in the subterranean termite Reticulitermes flavipes
- Pierre-André Eyer
- , Jared Salin
- & Edward L. Vargo
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| Open AccessNeural correlates of mating system diversity: oxytocin and vasopressin receptor distributions in monogamous and non-monogamous Eulemur
- Nicholas M. Grebe
- , Annika Sharma
- & Christine M. Drea
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| Open AccessGene expression and epigenetics reveal species-specific mechanisms acting upon common molecular pathways in the evolution of task division in bees
- Natalia de Souza Araujo
- & Maria Cristina Arias
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| Open AccessOffspring fertility and grandchild survival enhanced by maternal grandmothers in a pre-industrial human society
- Simon N. Chapman
- , Mirkka Lahdenperä
- & Virpi Lummaa
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| Open AccessFecundity determines the outcome of founding queen associations in ants
- Eva-Maria Teggers
- , Falk Deegener
- & Romain Libbrecht
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| Open AccessHeat dissipation in subterranean rodents: the role of body region and social organisation
- František Vejmělka
- , Jan Okrouhlík
- & Radim Šumbera
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| Open AccessYawn contagion in domestic pigs (Sus scrofa)
- Ivan Norscia
- , Elisabetta Coco
- & Giada Cordoni
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| Open AccessTemporal division of labor in an aphid social system
- Harunobu Shibao
- , Mayako Kutsukake
- & Takema Fukatsu
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| Open AccessSpeech adapts to differences in dentition within and across populations
- Caleb Everett
- & Sihan Chen
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| Open AccessExperimental evidence for yawn contagion in orangutans (Pongo pygmaeus)
- Evy van Berlo
- , Alejandra P. Díaz-Loyo
- & Jorg J. M. Massen
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| Open AccessImpact of individual demographic and social factors on human–wildlife interactions: a comparative study of three macaque species
- Krishna N. Balasubramaniam
- , Pascal R. Marty
- & Brenda McCowan
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| Open AccessDynamics of social network emergence explain network evolution
- Caleb Pomeroy
- , Robert M. Bond
- & Skyler J. Cranmer
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| Open AccessRavens parallel great apes in physical and social cognitive skills
- Simone Pika
- , Miriam Jennifer Sima
- & Roger Mundry
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| Open AccessIncreasing prosocial behavior and decreasing selfishness in the lab and everyday life
- Andrew T. Gloster
- , Marcia T. B. Rinner
- & Andrea H. Meyer
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| Open AccessAutomated measurement of long-term bower behaviors in Lake Malawi cichlids using depth sensing and action recognition
- Zachary V. Johnson
- , Manu Tej Sharma Arrojwala
- & Patrick T. McGrath
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| Open AccessTime-resolved classification of dog brain signals reveals early processing of faces, species and emotion
- Miiamaaria V. Kujala
- , Jukka-Pekka Kauppi
- & Lauri Parkkonen
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| Open AccessDefectors’ intolerance of others promotes cooperation in the repeated public goods game with opting out
- Vlastimil Křivan
- & Ross Cressman
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| Open AccessVocal panting: a novel thermoregulatory mechanism for enhancing heat tolerance in a desert-adapted bird
- Anaïs Pessato
- , Andrew E. McKechnie
- & Mylene M. Mariette
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| Open AccessHow the incentive to contribute affects contributions in the one-shot public goods game
- Pieter van den Berg
- , Peter Dewitte
- & Tom Wenseleers
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| Open AccessAdult, intensively socialized wolves show features of attachment behaviour to their handler
- Rita Lenkei
- , Dóra Újváry
- & Tamás Faragó
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| Open AccessFive rules for friendly rivalry in direct reciprocity
- Yohsuke Murase
- & Seung Ki Baek
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| Open AccessCooperative rescue of a juvenile capuchin (Cebus imitator) from a Boa constrictor
- Katharine M. Jack
- , Michaela R. Brown
- & Sophie E. Lieber
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| Open AccessTwo ways to overcome the three social dilemmas of indirect reciprocity
- Isamu Okada
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| Open AccessAzure-winged magpies’ decisions to share food are contingent on the presence or absence of food for the recipient
- Jorg J. M. Massen
- , Sofia M. Haley
- & Thomas Bugnyar
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| Open AccessSocial efficiency deficit deciphers social dilemmas
- Md. Rajib Arefin
- , K. M. Ariful Kabir
- & Jun Tanimoto
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| Open AccessForaging postures are a potential communicative signal in female bonobos
- Elisa Demuru
- , François Pellegrino
- & Florence Levréro
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| Open AccessSocial learning exploits the available auditory or visual cues
- Nihaad Paraouty
- , Joey A. Charbonneau
- & Dan H. Sanes
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| Open AccessConsistent differences in a virtual world model of ape societies
- Bart J. Wilson
- , Sarah F. Brosnan
- & Crickette M. Sanz
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| Open AccessCore design principles for nurturing organization-level selection
- David Sloan Wilson
- , Melvin M. Philip
- & Kevin M. Kniffin
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| Open AccessThe stability of conditional cooperation: beliefs alone cannot explain the decline of cooperation in social dilemmas
- Luciano Andreozzi
- , Matteo Ploner
- & Ali Seyhun Saral
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| Open AccessUnderstanding the spatial–temporal variation of human footprint in Jiangsu Province, China, its anthropogenic and natural drivers and potential implications
- Feixue Shen
- , Lin Yang
- & Jonathan M. Adams
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| Open AccessAutomata representation of successful strategies for social dilemmas
- Yohsuke Murase
- & Seung Ki Baek
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| Open AccessThe education-chasing labor rush in China identified by a heterogeneous migration-network game
- Xiaoqi Zhang
- , Yanqiao Zheng
- & Zhan Chen
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| Open AccessWhat matters for cooperation? The importance of social relationship over cognition
- Rachel Dale
- , Sarah Marshall-Pescini
- & Friederike Range
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| Open AccessScarce and directly beneficial reputations support cooperation
- Flóra Samu
- , Szabolcs Számadó
- & Károly Takács
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| Open AccessChildren avoid inefficient but fair partners in a cooperative game
- Laurent Prétôt
- , Gorana Gonzalez
- & Katherine McAuliffe