Assignment 39 - Click here for the video The Fossil Record (Part 1)
Assignment 40 - Click here for the video The Fossil Record (Part 2)
Assignment 41 - Click here for the video Patterns of Evolution (Part 1)
Assignment 42 - Click here for the video Patterns of Evolution (Part 2)
Assignment 43 - Click here for the video Earth's Early History(Part 1)
Assignment 44 - Follow this link for the video Earth's Early History (Part 2)
Assignment 40 - Click here for the video The Fossil Record (Part 2)
Assignment 41 - Click here for the video Patterns of Evolution (Part 1)
Assignment 42 - Click here for the video Patterns of Evolution (Part 2)
Assignment 43 - Click here for the video Earth's Early History(Part 1)
Assignment 44 - Follow this link for the video Earth's Early History (Part 2)