Differential changes in steroid hormones before competition in bonobos and chimpanzees

Bonobos voluntarily share their own food with others

(2010) Brian Hare et al.   CURRENT BIOLOGY

Bonobos Exhibit Delayed Development of Social Behavior and Cognition Relative to Chimpanzees

(2010) Victoria Wobber et al.   CURRENT BIOLOGY

How and why the winner effect forms: influences of contest environment and species differences

(2009) Matthew J. Fuxjager et al.   BEHAVIORAL ECOLOGY

The relationship between socio-sexual behavior and salivary cortisol in bonobos: tests of the tension regulation hypothesis

(2008) Gottfried Hohmann et al.   AMERICAN JOURNAL OF PRIMATOLOGY

Coping with competition: Neuroendocrine responses and cognitive variables

(2008) Alicia Salvador et al.   NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS

Psychophysiological stress in tennis players during the first single match of a tournament

(2008) Edith Filaire et al.   PSYCHONEUROENDOCRINOLOGY