TED-Ed: Why are some people left-handed? - Daniel M. Abrams

The video explores the concept of handedness, focusing on why a minority of people are left-handed. It delves into the historical prevalence of left-handedness, genetic influences, and evolutionary theories. The video highlights the competitive advantages left-handers have in sports and combat, while also discussing the cooperative pressures that favor right-handedness. It concludes with a model suggesting that the balance between competition and cooperation has maintained a stable minority of left-handers throughout human evolution.

What is the fighting hypothesis in relation to left-handedness?

How does cooperation influence the distribution of handedness in the population?

What implications does the persistence of left-handedness have for understanding human evolution?