Two Early Humans Go Hunting for Food

Two early humans go hunting for food. They have comparable intelligence. Brawn is strong and fast; Timorous is scrawny and easily tired by vigorous exercise. The men are attacked by a panther. They both run, but Timorous lags behind and is killed by the panther. The panther then chases and overcomes Brawn, who manages to fight off the panther and escape. Brawn passes his strength and speed on to many children; Timorous had only one child before he died. What process is responsible for Brawn's having more offspring than Timorous?

A) natural selection
B) behavioural neuroscience
C) humanism
D) social constructivism
E) a self-fulfilling prophecy