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List of works by Josep Call

"Giving" and "responding" differences in gestural communication between nonhuman great ape mothers and infants

scientific article

'Unwilling' versus 'unable': chimpanzees' understanding of human intentional action

scientific article published in September 2004

36-month-olds conceal visual and auditory information from others

scientific article published in May 2010

A comparison of spontaneous problem-solving abilities in three estrildid finch (Taeniopygia guttata, Lonchura striata var. domestica, Stagonopleura guttata) species

scientific article published on 24 August 2015

A competitive nonverbal false belief task for children and apes

scientific article published in July 2009

A fish-eye lens for comparative studies: broadening the scope of animal cognition

scientific article published on 01 March 2002

A modular mind? A test using individual data from seven primate species

scientific article (publication date: 2012)

A new false belief test for 36-month-olds

article by Malinda Carpenter et al published September 2002 in British Journal of Developmental Psychology

A pluralistic account of word learning

A reversed-reward contingency task reveals causal knowledge in chimpanzees (Pan troglodytes).

scientific article published on 18 April 2014

A test of the submentalizing hypothesis: Apes' performance in a false belief task inanimate control

scientific article published on 5 July 2017

Abstract knowledge in the broken-string problem: evidence from nonhuman primates and pre-schoolers

scientific article

Age-dependent cognitive inflexibility in great apes

All great ape species follow gaze to distant locations and around barriers

scientific article published in May 2005

An experimental study of nettle feeding in captive gorillas

scientific article published in June 2008

Animal culture: chimpanzee table manners?

scientific article published in November 2009

Ape metaphysics: object individuation without language

scientific article published on 29 May 2007

Apes (Gorilla gorilla, Pan paniscus, P. troglodytes, Pongo abelii) versus corvids (Corvus corax, C. corone) in a support task: the effect of pattern and functionality

scientific article published on 30 April 2012

Apes are intuitive statisticians

scientific article

Apes know that hidden objects can affect the orientation of other objects

scientific article published on 5 October 2006

Apes produce tools for future use.

scientific article published on 18 September 2014

Apes save tools for future use.

scientific article published on May 2006

Apes’ Tracking of Objects and Collections

Are apes essentialists? Scope and limits of psychological essentialism in great apes

scientific article

Are apes inequity averse? New data on the token-exchange paradigm

scientific article

Are apes really inequity averse?

scientific article

Are great apes able to reason from multi-item samples to populations of food items?

scientific article published on 6 September 2017

Are monkeys able to plan for future exchange?

scientific article published on 25 April 2012

Are there geniuses among the apes?

scientific article

Assessing the validity of ape-human comparisons: a reply to Boesch (2007).

scientific article published in November 2008

Aversion to violation of expectations of food distribution: the role of social tolerance and relative dominance in seven primate species

Barriers and traps: great apes' performance in two functionally equivalent tasks

scientific article published on 28 April 2012

Behavior. Monkeys like mimics

scientific article published in August 2009

Behavioral cues that great apes use to forage for hidden food

scientific article published on 30 May 2007

Behavioural responses to photographs by pictorially naïve baboons (Papio anubis), gorillas (Gorilla gorilla) and chimpanzees (Pan troglodytes).

scientific article published on 7 February 2008

Body orientation and face orientation: two factors controlling apes' behavior from humans

scientific article published in October 2004

Bonobos and orangutans, but not chimpanzees, flexibly plan for the future in a token-exchange task

scientific article published on 19 June 2014

Bonobos, chimpanzees, gorillas, and orang utans use feature and spatial cues in two spatial memory tasks

scientific article

Calculated reciprocity after all: computation behind token transfers in orang-utans

scientific article published on 23 December 2008

Calculated reciprocity? A comparative test with six primate species

scientific article published on 24 April 2014

Can chimpanzees (Pan troglodytes) discriminate appearance from reality?

scientific article published on 24 July 2009

Children's reasoning about spatial relational similarity: the effect of alignment and relational complexity

scientific article published on 10 December 2011

Chimpanzee 'folk physics': bringing failures into focus

scientific article

Chimpanzee problem-solving: contrasting the use of causal and arbitrary cues

scientific article

Chimpanzee responders still behave like rational maximizers

scientific article published on 5 April 2013

Chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) quantify split solid objects

scientific article published on 9 August 2012

Chimpanzees (Pan troglodytes) conceal visual and auditory information from others

scientific article

Chimpanzees (Pan troglodytes) flexibly adjust their behaviour in order to maximize payoffs, not to conform to majorities

scientific article (publication date: 2013)

Chimpanzees (Pan troglodytes) know what can be seen from where

scientific article published on 7 October 2008

Chimpanzees Consider Humans' Psychological States when Drawing Statistical Inferences

Chimpanzees and children avoid mutual defection in a social dilemma

Chimpanzees are rational maximizers in an ultimatum game

scientific article

Chimpanzees are vengeful but not spiteful

scholarly article

Chimpanzees coordinate in a snowdrift game

Chimpanzees deceive a human competitor by hiding

scientific article published on 17 January 2006

Chimpanzees do not take into account what others can hear in a competitive situation

scientific article published on 09 June 2007

Chimpanzees form long-term memories for food locations after limited exposure

scientific article published on 31 January 2014

Chimpanzees help conspecifics obtain food and non-food items ⬇️

scientific article published on October 27, 2010

Chimpanzees know that others make inferences

scientific article

Chimpanzees know what others know, but not what they believe

scientific article published on 11 October 2008

Chimpanzees predict that a competitor's preference will match their own.

scientific article

Chimpanzees really know what others can see in a competitive situation

scientific article

Chimpanzees strategically manipulate what others can see.

scientific article

Chimpanzees versus humans: it's not that simple

scientific article published in June 2003

Chimpanzees, Pan troglodytes, recognize successful actions, but fail to imitate them

Chimpanzees, bonobos and children successfully coordinate in conflict situations.

scientific article published in June 2017

Citizen Science as a New Tool in Dog Cognition Research

scientific article

Cognitive cladistics and cultural override in Hominid spatial cognition

scholarly article

Cognitive differences between orang-utan species: a test of the cultural intelligence hypothesis

scientific article

Common Visual Preference for Curved Contours in Humans and Great Apes

scientific article (publication date: 2015)

Communication about absent entities in great apes and human infants

scientific article published on 27 August 2015

Comparative psychometrics: establishing what differs is central to understanding what evolves

scientific article published on 01 September 2018

Comparing dogs and great apes in their ability to visually track object transpositions

scientific article published on 27 May 2009

Comparing humans and nonhuman great apes in the broken cloth problem: Is their knowledge causal or perceptual?

scientific article published on 25 June 2015

Comparing the performances of apes (Gorilla gorilla, Pan troglodytes, Pongo pygmaeus) and human children (Homo sapiens) in the floating peanut task

scientific article (publication date: 2011)

Comprehension of iconic gestures by chimpanzees and human children

scientific article published on 5 October 2015

Comprehension of signs by dolphins (Tursiops truncatus).

scientific article published in March 2001

Conservatism and "copy-if-better" in chimpanzees (Pan troglodytes).

scientific article

Contextual imitation of intransitive body actions in a Beluga whale (Delphinapterus leucas): A "do as other does" study

scientific article

Contrasting the social cognition of humans and nonhuman apes: the shared intentionality hypothesis

scientific article

Copying results and copying actions in the process of social learning: chimpanzees (Pan troglodytes) and human children (Homo sapiens).

scientific article published on 15 October 2004

Correlations between serum levels of beta amyloid, cerebrospinal levels of tau and phospho tau, and delayed response tasks in young and aged cynomolgus monkeys (Macaca fascicularis).

scientific article published on 26 March 2013

Correspondence: Reply to 'Chimpanzee helping is real, not a byproduct'.

scientific article published on 12 February 2018

Cross-species variation in gaze following and conspecific preference among great apes, human infants and adults

Delayed response task performance as a function of age in cynomolgus monkeys (Macaca fascicularis)

scientific article

Design complexity in termite-fishing tools of chimpanzees (Pan troglodytes).

scientific article published on 04 March 2009

Differences in the Ability of Apes and Children to Instruct Others Using Gestures

Differences in the cognitive skills of bonobos and chimpanzees

scientific article

Differing views: Can chimpanzees do Level 2 perspective-taking?

scientific article published on 6 February 2016

Discrete quantity judgments in the great apes (Pan paniscus, Pan troglodytes, Gorilla gorilla, Pongo pygmaeus): the effect of presenting whole sets versus item-by-item

scientific article

Distinctiveness enhances long-term event memory in non-human primates, irrespective of reinforcement

scientific article

Do apes know that they could be wrong?

scientific article published on 20 March 2010

Do bonobos say NO by shaking their head?

scientific article

Do capuchin monkeys, Cebus apella, know what conspecifics do and do not see?

Do chimpanzees know what conspecifics know?

scientific article

Do chimpanzees use weight to select hammer tools?

scientific article

Do dogs distinguish rational from irrational acts?

Do domestic dogs interpret pointing as a command?

scientific article published on 9 November 2012

Do gorillas (Gorilla gorilla) and orangutans (Pongo pygmaeus) fail to represent objects in the context of cohesion violations?

scientific article published in August 2010

Do great apes use emotional expressions to infer desires?

scientific article

Dogs, Canis familiaris, communicate with humans to request but not to inform

article published in 2011

Dogs, Canis familiaris, fail to copy intransitive actions in third-party contextual imitation tasks

article by Claudio Tennie et al published June 2009 in Animal Behaviour

Domestic dogs (Canis familiaris) are sensitive to the attentional state of humans

scientific article published in September 2003

Domestic dogs (Canis familiaris) coordinate their actions in a problem-solving task

scientific article published on 23 October 2012

Domestic dogs (Canis familiaris) use a physical marker to locate hidden food

scientific article published on 16 November 2005

Domestic dogs are sensitive to a human's perspective

Domestic dogs comprehend human communication with iconic signs.

scientific article published in November 2009

Domestic dogs conceal auditory but not visual information from others

scientific article published on 3 November 2012

Domestic goats, Capra hircus, follow gaze direction and use social cues in an object choice task

article published in 2005

Enculturated chimpanzees imitate rationally

scientific article published in July 2007

Evidence for emulation in chimpanzees in social settings using the floating peanut task

scientific article

Evolutionary psychology of spatial representations in the hominidae.

scientific article

Exceptional evolutionary divergence of human muscle and brain metabolomes parallels human cognitive and physical uniqueness

scientific article (publication date: May 2014)

Experimental evidence for action imitation in killer whales (Orcinus orca).

scientific article published on 9 August 2012

Eye tracking uncovered great apes' ability to anticipate that other individuals will act according to false beliefs

scientific article

Face and eye scanning in gorillas (Gorilla gorilla), orangutans (Pongo abelii), and humans (Homo sapiens): unique eye-viewing patterns in humans among hominids

scientific article

Fission-fusion dynamics, behavioral flexibility, and inhibitory control in primates

scientific article published in September 2008

Food washing and placer mining in captive great apes

scientific article published on 11 May 2013

From colour photographs to black-and-white line drawings: an assessment of chimpanzees' (Pan troglodytes') transfer behaviour

scientific article

From exploitation to cooperation: social tool use in orang-utan mother–offspring dyads

From sign to action: Studies in chimpanzee pictorial competence

Gorillas (Gorilla gorilla) and orangutans (Pongo pygmaeus) encode relevant problem features in a tool-using task

scientific article

Gravity and solidity in four great ape species (Gorilla gorilla, Pongo pygmaeus, Pan troglodytes, Pan paniscus): vertical and horizontal variations of the table task

scientific article published in May 2009

Great apes (Pan paniscus, Pan troglodytes, Gorilla gorilla, Pongo abelii) follow visual trails to locate hidden food

scientific article published in May 2014

Great apes and children infer causal relations from patterns of variation and covariation

scientific article published on 22 June 2016

Great apes anticipate that other individuals will act according to false beliefs

scientific article

Great apes distinguish true from false beliefs in an interactive helping task

scientific article

Great apes generate goal-based action predictions: an eye-tracking study

scientific article published on 14 July 2014

Great apes infer others' goals based on context

scientific article published on 30 June 2012

Great apes select tools on the basis of their rigidity

scientific article published in October 2010

Great apes track hidden objects after changes in the objects' position and in subject's orientation

scientific article published in April 2010

Great apes use landmark cues over spatial relations to find hidden food

scientific article published on 19 April 2011

Great apes use weight as a cue to find hidden food

scientific article published on 10 November 2010

Great apes' (Pan troglodytes, Pan paniscus, Gorilla gorilla, Pongo pygmaeus) understanding of tool functional properties after limited experience

scientific article

Great apes' capacities to recognize relational similarity

scientific article

Great apes' performance in discriminating weight and achromatic color

scientific article published on 24 February 2009

Great apes' risk-taking strategies in a decision making task

scientific article

Great apes' strategies to map spatial relations

scientific article published on 26 February 2011

Great apes' understanding of other individuals' line of sight

scientific article published in May 2007

Grooming network cohesion and the role of individuals in a captive chimpanzee group

scientific article published on 22 December 2010

How Artificial Communication Affects the Communication and Cognition of the Great Apes

article by Josep Call published 14 January 2011 in Mind & Language

How chimpanzees (Pan troglodytes) perform in a modified emotional Stroop task

scientific article

How great apes perform on a modified trap-tube task

scientific article published on 13 April 2006

How prior experience and task presentation modulate innovation in 6-year-old-children

article

How the great apes (Pan troglodytes, Pongo pygmaeus, Pan paniscus, Gorilla gorilla) perform on the reversed reward contingency task II: transfer to new quantities, long-term retention, and the impact of quantity ratios

scientific article

How the great apes (Pan troglodytes, Pongo pygmaeus, Pan paniscus, and Gorilla gorilla) perform on the reversed contingency task: the effects of food quantity and food visibility

scientific article published in January 2006

Human children rely more on social information than chimpanzees do.

scientific article

Humans have evolved specialized skills of social cognition: the cultural intelligence hypothesis

scientific article

Image scoring in great apes.

scientific article published in November 2007

Imitation of novel conspecific and human speech sounds in the killer whale (Orcinus orca).

scientific article published in January 2018

Inferences about food location in three cercopithecine species: an insight into the socioecological cognition of primates

scientific article published on 20 February 2015

Inferences about the location of food in the great apes (Pan paniscus, Pan troglodytes, Gorilla gorilla, and Pongo pygmaeus).

scientific article published in June 2004

Inferences by exclusion in the great apes: the effect of age and species

scientific article published on 22 August 2006

Information seeking about tool properties in great apes

scientific article

Intuitions about gravity and solidity in great apes: the tubes task

scientific article published on March 2010

Intuitive optics: what great apes infer from mirrors and shadows.

scientific article published on 2 May 2018

Intuitive statistical inferences in chimpanzees and humans follow Weber’s law

scientific article published on 14 July 2018

Is there only one way to become sapiens?

Joint Bayesian Modeling of Binomial and Rank Data for Primate Cognition

Keeping track of time: evidence for episodic-like memory in great apes

scientific article

Lack of prosociality in great apes, capuchin monkeys and spider monkeys: convergent evidence from two different food distribution tasks

article

Language Origins Viewed in Spontaneous and Interactive Vocal Rates of Human and Bonobo Infants

Leaf Surface Roughness Elicits Leaf Swallowing Behavior in Captive Chimpanzees (Pan troglodytes) and Bonobos (P. paniscus), but not in Gorillas (Gorilla gorilla) or Orangutans (Pongo abelii)

Long-Term Memory of Past Events in Great Apes

Making inferences about the location of hidden food: social dog, causal ape.

scientific article

Mangabeys (Cercocebus torquatus lunulatus) solve the reverse contingency task without a modified procedure.

scientific article published on 22 February 2007

Memory for distant past events in chimpanzees and orangutans

scientific article published on 18 July 2013

Memory processing in great apes: the effect of time and sleep

scientific article published on June 2011

Methodological challenges in the study of primate cognition

scientific article published in December 2011

Monkeys (Sapajus apella and Macaca tonkeana) and great apes (Gorilla gorilla, Pongo abelii, Pan paniscus, and Pan troglodytes) play for the highest bid

scientific article published on 27 December 2018

Monkeys and apes: are their cognitive skills really so different?

scientific article published in October 2010

Monkeys fail to reciprocate in an exchange task.

scientific article published on 16 May 2010

Monkeys perform as well as apes and humans in a size discrimination task

scientific article published on 27 February 2013

Nasal temperature drop in response to a playback of conspecific fights in chimpanzees: A thermo-imaging study

scientific article published on 4 December 2015

No third-party punishment in chimpanzees

scientific article

Non-goal-directed recall of specific events in apes after long delays.

scientific article published in July 2017

Object permanence in orangutans (Pongo pygmaeus), chimpanzees (Pan troglodytes), and children (Homo sapiens).

scientific article

Onset and early use of gestural communication in nonhuman great apes

scientific article published on 24 October 2011

Orangutans (Pongo pygmaeus) and bonobos (Pan paniscus) point to inform a human about the location of a tool

scientific article published on 24 October 2008

Orientation toward humans predicts cognitive performance in orang-utans

scientific article

Personality in the behaviour of great apes: temporal stability, cross-situational consistency and coherence in response

Phylogenetic roots of quantity processing: Apes do not rely on object indexing to process quantities

scholarly article by Trix Cacchione et al published July 2014 in Cognitive Development

Piagetian conservation of discrete quantities in bonobos (Pan paniscus), chimpanzees (Pan troglodytes), and orangutans (Pongo pygmaeus).

scientific article

Piagetian liquid conservation in the great apes (Pan paniscus, Pan troglodytes, and Pongo pygmaeus).

scientific article published in September 2004

Postconflict third-party affiliation in stumptailed macaques

article by Josep Call et al published February 2002 in Animal Behaviour

Primate social attention: Species differences and effects of individual experience in humans, great apes, and macaques

scientific article published on 23 February 2018

Primates do not spontaneously use shape properties for object individuation: a competence or a performance problem?

scientific article

Problem solving in great apes (Pan paniscus, Pan troglodytes, Gorilla gorilla, and Pongo abelii): the effect of visual feedback

scientific article

Production and Comprehension of Gestures between Orang-Utans (Pongo pygmaeus) in a Referential Communication Game

scientific article published on 19 June 2015

Prospective object search in dogs: mixed evidence for knowledge of What and Where

scientific article published on 04 December 2007

Push or Pull: Imitation vs. Emulation in Great Apes and Human Children

Ratcheting up the ratchet: on the evolution of cumulative culture

scientific article

Rational tool use and tool choice in human infants and great apes

scientific article

Reaching around barriers: the performance of the great apes and 3-5-year-old children

scientific article

Relative quantity judgments in South American sea lions (Otaria flavescens).

scientific article published on 28 April 2011

Relative quantity judgments in the beluga whale (Delphinapterus leucas) and the bottlenose dolphin (Tursiops truncatus).

scientific article published on 13 March 2013

Remembering in tool-use tasks in children and apes: the role of the information at encoding

scientific article published on 14 June 2013

Remembering past exchanges: Apes fail to use social cues

scientific article published in 2018

Repeated innovation in great apes

article

Response facilitation in the four great apes: is there a role for empathy?

scientific article published on 24 August 2013

Restorative Justice in Children

scientific article published on 18 June 2015

Searching in the middle-Capuchins' (Cebus apella) and bonobos' (Pan paniscus) behavior during a spatial search task

scientific article published in January 2010

Sensitivity to Relational Similarity and Object Similarity in Apes and Children

scientific article published on 3 February 2016

Sequential tool use in great apes

scientific article

Sequential use of rigid and pliable tools in tufted capuchin monkeys (Sapajus spp.)

Simple Mechanisms Can Explain Social Learning in Domestic Dogs (Canis familiaris)

Social Attention in the Two Species of Pan: Bonobos Make More Eye Contact than Chimpanzees

scientific article

Social inhibition and behavioural flexibility when the context changes: a comparison across six primate species

scientific article published on 15 February 2018

Space or physics? Children use physical reasoning to solve the trap problem from 2.5 years of age.

scientific article published on 28 April 2014

Spatial rotations and transpositions in orangutans ( Pongo pygmaeus) and chimpanzees ( Pan troglodytes).

scientific article published on 22 August 2003

Spider monkeys (Ateles geoffroyi) and capuchin monkeys (Cebus apella) follow gaze around barriers: evidence for perspective taking?

scientific article published in November 2009

Spontaneous use of tools as straws in great apes

scientific article published on 4 December 2010

Submentalizing Cannot Explain Belief-Based Action Anticipation in Apes

scientific article published on 17 July 2017

Sumatran Orangutans and a Yellow-Cheeked Crested Gibbon Know What Is Where

article by Marina Scheumann et al published 23 May 2006 in International Journal of Primatology

Superior olivary complex organization and cytoarchitecture may be correlated with function and catarrhine primate phylogeny

scientific article

Task constraints mask great apes' ability to solve the trap-table task

scientific article

The Effect of Plausible Versus Implausible Balance Scale Feedback on the Expectancies of 3- to 4-Year-Old Children

The cognitive underpinnings of flexible tool use in great apes

scientific article published on 7 April 2014

The domestication hypothesis for dogs' skills with human communication: a response to Udell et al. (2008) and Wynne et al. (2008)

article by Brian Hare et al published February 2010 in Animal Behaviour

The early ontogeny of human–dog communication

article by Julia Riedel et al published March 2008 in Animal Behaviour

The effect of inter-opponent distance on the occurrence of reconciliation in stumptail (Macaca arctoides) and rhesus macaques (Macaca mulatta)

The evolution of self-control

scientific article

The goggles experiment: can chimpanzees use self-experience to infer what a competitor can see?

The interplay of prior experience and motivation in great ape problem-solving (Gorilla gorilla, Pan paniscus, Pan troglodytes, and Pongo abelii).

scientific article published on 30 April 2018

The learning and use of gestural signals by young chimpanzees: A trans-generational study

The limits of endowment effects in great apes (Pan paniscus, Pan troglodytes, Gorilla gorilla, Pongo pygmaeus).

scientific article

The magic cup: great apes and domestic dogs (Canis familiaris) individuate objects according to their properties

scientific article published in August 2011

The nature of prosociality in chimpanzees

scientific article

The performance of bonobos (Pan paniscus), chimpanzees (Pan troglodytes), and orangutans (Pongo pygmaeus) in two versions of an object-choice task

scientific article

The psychology of primate cooperation and competition: a call for realigning research agendas

scientific article

The role of humans in the cognitive development of apes revisited

scientific article published in October 2004

The role of past interactions in great apes' communication about absent entities

scientific article published on 3 October 2016

The structure of individual differences in the cognitive abilities of children and chimpanzees

scientific article published on 18 December 2009

The use of experimenter-given cues by South African fur seals (Arctocephalus pusillus).

scientific article published in October 2004

Theft in an ultimatum game: chimpanzees and bonobos are insensitive to unfairness

scientific article

Theory of mind in animals: Current and future directions

scientific article published on 17 May 2019

Thirty years of great ape gestures

scientific article published on 21 February 2018

Time-space-displaced responses in the orangutan vocal system

article

To bet or not to bet? Decision-making under risk in non-human primates

Token transfers among great apes (Gorilla gorilla, Pongo pygmaeus, Pan paniscus, and Pan troglodytes): species differences, gestural requests, and reciprocal exchange

scientific article published in November 2009

Tool choice on the basis of rigidity in capuchin monkeys

scientific article published on 6 May 2011

Tool selection during foraging in two species of funnel ants

Tracking and inferring spatial rotation by children and great apes

scientific article

Tracking the displacement of objects: a series of tasks with great apes (Pan troglodytes, Pan paniscus, Gorilla gorilla, and Pongo pygmaeus) and young children (Homo sapiens).

scientific article published in July 2006

Tubes, tables and traps: great apes solve two functionally equivalent trap tasks but show no evidence of transfer across tasks

scientific article published on 09 January 2008

Twelve- and 18-month-olds copy actions in terms of goals

scientific article published in January 2005

Two-year-old children copy more reliably and more often than nonhuman great apes in multiple observational learning tasks

scientific article

Understanding "prior intentions" enables two-year-olds to imitatively learn a complex task

scientific article published in September 2002

Understanding the functional properties of tools: chimpanzees (Pan troglodytes) and capuchin monkeys (Cebus apella) attend to tool features differently

scientific article published on 31 March 2012

Untrained chimpanzees (Pan troglodytes schweinfurthii) fail to imitate novel actions

scientific article

Unwilling versus unable: infants' understanding of intentional action

scientific article published in March 2005

Use of gesture sequences in chimpanzees

scientific article published in December 2004

Variation in withholding of information in three monkey species.

scientific article

Visual perspective taking in dogs (Canis familiaris) in the presence of barriers

What Role Do Mothers Play in the Gestural Acquisition of Bonobos (Pan paniscus) and Chimpanzees (Pan troglodytes)?

What do bonobos (Pan paniscus) understand about physical contact?

scientific article published in August 2006

What does an intermediate success rate mean? An analysis of a Piagetian liquid conservation task in the great apes

scientific article published on 14 April 2005

What's in it for me? Self-regard precludes altruism and spite in chimpanzees.

scientific article

When do dogs help humans?

article by Juliane Bräuer et al published September 2013 in Applied Animal Behaviour Science

When maths trumps logic: probabilistic judgements in chimpanzees

scientific article

Younger apes and human children plan their moves in a maze task

scientific article published on 6 December 2013

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