Learn all about natural selection and adaptations with new, precise, yet easy-to-understand, definitions and explanations.  What is natural selection?  What are adaptations?  What are some ways that animals have adapted to their environments?  What are fossils?  What is the fossil record?  What factors affect how well the fossil record is preserved?  The answers to these questions are covered in depth with detailed graphics, diagrams and exciting video.  On-screen, multiple-choice reviews at the end of each segment reinforce important concepts and make learning fun.