What Darwin Didn't Know: The Modern Science of Evolution

The Evolution of Braisn and Behavior (1x19)

:

In Darwin’s lifetime, comparisons between the brains of different species were restricted to examinations of anatomy alone. Today, researchers use genetic tools to gain deep insights into how behaviors and sensory abilities evolve. Study behavior in creatures from fire ants to crows to humans, asking how did human brains get so large—and why are big brains so useful anyway?