Fig. 3
From: Sociobiology and the Comparative Approach: One Way to Study Ourselves
Diagram showing all the character changes (represented by slash marks) that exist between distantly related animals. This figure is purely heuristic—it is a grossly simplified picture of animal phylogeny and character diversification. Another way to think about the figure is that it is a diagrammatic way of saying that there are vast genetic, physiological, morphological, ecological, and behavioral differences between, say, an insect and a human being