Background The human sense of fairness presents an evolutionary puzzle because it
appears to run counter to the short-term interests of at least some parties. We not only react …

Assumptions on the neural basis of cognition usually focus on cortical mechanisms. Birds
have no cortex, but recent studies in parrots and corvids show that their cognitive skills are …

A New York Times bestseller:" A passionate and convincing case for the sophistication of
nonhuman minds."—Alison Gopnik, The Atlantic Hailed as a classic, Are We Smart Enough …

The first Mariana crow I encountered in the flesh was a young bird named Diseja. Perched
up close to the mesh siding of her small aviary, she called out again and again as she saw …

Cognition is considered a hallmark of the primate brain that requires a high degree of signal
integration, such as achieved in the prefrontal cortex. Moreover, it is often assumed that …

A distinctive feature across human societies is our interest in justice and fairness. People will
sometimes invest in extremely costly behavior to achieve fair outcomes for themselves and …

In the last decades, the assumption that complex social life is cognitively challenging, and
thus can drive mental evolution, has received much support from empirical studies in …

The last several decades of research on avian cognition have revealed surprising parallels
between the abilities of birds—most notably corvids—and great apes. Parrots, albeit far less …

Humans from a very early age are deeply sensitive to issues of justice and fairness, both in
their own lives and in the lives of others. Most people are highly motivated to pursue justice …

The requirements of living in social groups, and forming and maintaining social relationships
are hypothesized to be one of the major drivers behind the evolution of cognitive abilities …