Mathematics provides tools for explanation and analysis in the physical, engineering, business and social sciences. These tools can help in areas as diverse as planning and evaluating market research, ...

Dynamic environments influence the evolution of cooperative behavior, yet existing analyses often overlook population heterogeneity observed in realistic populations in nature. This study provides an ...

A little more than a year ago, on a trip to Nairobi, Kenya, some colleagues and I met a 12-year-old Masai boy named Richard Turere, who told us a fascinating story. His family raises livestock on the ...

The biggest stories of the day delivered to your inbox.