Chimpanzees empathize with group mates and humans, but not with baboons or unfamiliar chimpanzees

Pro-social behavior in rats is modulated by social experience

(2014) Inbal Ben-Ami Bartal et al.   eLife

Familiarity Bias and Physiological Responses in Contagious Yawning by Dogs Support Link to Empathy

(2013) Teresa Romero et al.   PLoS One

Chimpanzees Show a Developmental Increase in Susceptibility to Contagious Yawning: A Test of the Effect of Ontogeny and Emotional Closeness on Yawn Contagion

(2013) Elainie Alenkær Madsen et al.   PLoS One

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

(2013) Federica Amici et al.   PRIMATES

Contagious yawning in domestic dog puppies (Canis lupus familiaris): the effect of ontogeny and emotional closeness on low-level imitation in dogs

(2012) Elainie Alenkær Madsen et al.   ANIMAL COGNITION

Empathic-like responding by domestic dogs (Canis familiaris) to distress in humans: an exploratory study

(2012) Deborah Custance et al.   ANIMAL COGNITION

Auditory contagious yawning in domestic dogs (Canis familiaris): first evidence for social modulation

(2012) Karine Silva et al.   ANIMAL COGNITION

Mirror neuron activity during contagious yawning—an fMRI study

(2012) Helene Haker et al.   Brain Imaging and Behavior

Male Yawning Is More Contagious than Female Yawning among Chimpanzees (Pan troglodytes)

(2012) Jorg J. M. Massen et al.   PLoS One

In Bonobos Yawn Contagion Is Higher among Kin and Friends

(2012) Elisa Demuru et al.   PLoS One

Bridging a yawning chasm: EEG investigations into the debate concerning the role of the human mirror neuron system in contagious yawning

(2011) Nicholas R. Cooper et al.   COGNITIVE AFFECTIVE & BEHAVIORAL NEUROSCIENCE

Ingroup-Outgroup Bias in Contagious Yawning by Chimpanzees Supports Link to Empathy

(2011) Matthew W. Campbell et al.   PLoS One

Yawn Contagion and Empathy in Homo sapiens

(2011) Ivan Norscia et al.   PLoS One

Avian maternal response to chick distress

(2011) J. L. Edgar et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Empathy and Pro-Social Behavior in Rats

(2011) I. B.-A. Bartal et al.   SCIENCE

A test of the yawning contagion and emotional connectedness hypothesis in dogs, Canis familiaris

(2010) Sean J. O’Hara et al.   ANIMAL BEHAVIOUR

Racial Bias Reduces Empathic Sensorimotor Resonance with Other-Race Pain

(2010) Alessio Avenanti et al.   CURRENT BIOLOGY

The daily time course of contagious and spontaneous yawning among humans

(2010) Fiorenza Giganti et al.   JOURNAL OF ETHOLOGY

Neural basis of extraordinary empathy and altruistic motivation

(2010) Vani A. Mathur et al.   NEUROIMAGE

Towards a bottom-up perspective on animal and human cognition

(2010) Frans B.M. de Waal et al.   TRENDS IN COGNITIVE SCIENCES

Do dogs (Canis familiaris) show contagious yawning?

(2009) Aimee L. Harr et al.   ANIMAL COGNITION

An investigation of auditory contagious yawning

(2009) Stephen R. Arnott et al.   COGNITIVE AFFECTIVE & BEHAVIORAL NEUROSCIENCE

Do You Feel My Pain? Racial Group Membership Modulates Empathic Neural Responses

(2009) X. Xu et al.   JOURNAL OF NEUROSCIENCE

Contagious yawning in gelada baboons as a possible expression of empathy

(2009) E. Palagi et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Computer animations stimulate contagious yawning in chimpanzees

(2009) M. W. Campbell et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Dogs catch human yawns

(2008) R. M Joly-Mascheroni et al.   Biology Letters

Heart rate modulation in bystanding geese watching social and non-social events

(2008) C. A.F Wascher et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES