The rock pocket mouse is a living example of Darwins process of natural selection Evolution is happening right now everywhere around us and adaptive changes can occur in a population with remarkable speed This is essential if youre a mouse living in an environment where a volcanic eruption can reverse selective pressure in nearly an instant The film features Dr Michael Nachman whose work on pocket mice reveals a complete story from ecosystem to molecules that demonstrates how random changes in the genome can take many paths to the same adaptationa colored coat that hides them from predators