Chimpanzees possess a large number of behavioral and cultural traits among nonhuman
species. The “disturbance hypothesis” predicts that human impact depletes resources and …

… Richard McElreath and Dr Rita da Silva for their advice on the analysis. We would further
like to thank the more than 1300 Species360 members for registering their animals in the ZIMS …

In humans, identity is partly encoded in a voice-print that is carried across multiple vocalizations.
Other species also signal vocal identity in calls, such as shown in the contact call of …

Multiple paternity is common in vertebrates that produce several offspring in the same
reproductive bout, but the rate often varies among and within populations. Three primary …

Geographic differences in vocalizations provide strong evidence for animal culture, with
patterns likely arising from generations of social learning and transmission. Most studies on the …

It is often observed that human culture, unlike most other animal culture, is cumulative: Human
technology and behavior is more complex than any individual could invent in their own …

… Mary Brooke McElreath contributed to the original design and concept of the study, analysis
… Richard McElreath contributed to the original design and concept of the study, supervised …

Geographic differences in vocalisations provide strong evidence for animal culture, with
patterns likely arising from generations of social learning and transmission. The current …

Parrots are well-known for their exceptionally long lives and cognitive complexity. While
previous studies have demonstrated a correlation between longevity and brain size in a variety …

… In addition, we are thankful to Richard McElreath for providing statistical advice and draft
feedback, and Karen Mabry for offering feedback on drafts of this manuscript. Funding was …