1. North America, Our Home http://www.youtube.com/watch?v=hOLAGYmUQV0&feature=related http://thebutterflydiaries.files.wordpress.com/2010/02/woolly_mammoth_herd_full.jpg

2. The Cenozoic Clock

11. -65/0 -45-15 -30 The Cenozoic Clock 60

12. -65/0 -45-15 -30 The Cenozoic Clock

13. -65/0 -45-15 -30 The Cenozoic Clock

14. -65/0 -45-15 -30 The Cenozoic Clock

15. -65/0 -45-15 -30 The Cenozoic Clock

16. -65/0 -45-15 -30 The Cenozoic Clock

17. -65/0 -45-15 -30 The Cenozoic Clock

18. -65/0 -45-15 -30 The Cenozoic Clock

19. -65/0 -45-15 -30 The Cenozoic Clock

20. -65/0 -45-15 -30 The Cenozoic Clock

21. North America, Our Home http://www.youtube.com/watch?v=hOLAGYmUQV0&feature=related http://thebutterflydiaries.files.wordpress.com/2010/02/woolly_mammoth_herd_full.jpg

22. The Cenozoic Clock