An introduction to evolutionary developmental biology demonstrates how the many forms of animals evolved and came into being, documenting how the Evo Devo branch of science proved that all animal organs and appendages, from arms and legs to wings and fins, were created from a small number of primitive genes

A scientist describes how he linked the DNA found in the remains of a five-thousand-year-old man to modern-day relatives and explains how all modern individuals can trace their genetic makeup back to prehistoric times to seven primeval women.