Humans are an ultrasocial species. This sociality, however, cannot be fully explained by the
canonical approaches found in evolutionary biology, psychology, or economics …

Cell cooperation promotes many of the hallmarks of cancer via the secretion of diffusible
factors that can affect cancer cells or stromal cells in the tumour microenvironment. This …

Neuroscience has made astounding progress in the understanding of the brain. What
should we make of its claims to go beyond the brain and explain consciousness, behaviour …

Many animals, including humans, acquire valuable skills and knowledge by copying others.
Scientists refer to this as social learning. It is one of the most exciting and rapidly developing …

Charles Darwin changed the course of scientific thinking by showing how evolution
accounts for the stunning diversity and biological complexity of life on earth. Recently, there …

New York Times bestselling author Sam Harris's first book, The End of Faith, ignited a
worldwide debate about the validity of religion. In the aftermath, Harris discovered that most …

Willingness to lay down one's life for a group of non-kin, well documented historically and
ethnographically, represents an evolutionary puzzle. Building on research in social …

Evolutionary theory is one of the most wide-ranging and inspiring of scientific ideas. It offers
a battery of methods that can be used to interpret human behaviour. But the legitimacy of this …

Cooperation beyond familial and group boundaries is core to the functioning of human
societies, yet its evolution remains unclear. To address this, we examined grooming …

I discuss the function of social identity signaling in facilitating cooperative group formation,
and how the nature of that function changes with the structure of social organization. I …