Homepage Newsroom Behavioral Biology First come, first bred January 12, 2020 Behavioral Biology Arriving early in the breeding area is crucial for successful reproduction also in non-migratory birds more Prosocial and tolerant parrots help others to obtain food January 09, 2020 Behavioral Biology African grey parrots spontaneously help conspecifics without obvious benefits to themselves more The growing pains of orphan chimpanzees January 07, 2020 Behavioral Biology Mothers may be shaping pre-adult growth and offspring muscle mass even without direct provisioning more Less offspring due to territorial conflicts January 03, 2020 Behavioral Biology Female chimpanzees’ reproductive success decreases in times of strong territorial conflict with other groups more Wild chimpanzees are sensitive to the sound properties of different woods December 18, 2019 Behavioral Biology Accumulative stone throwing chimpanzees like tree species with a resonating timbre more Show more