Use fossils, like clues buried inside of rocks, to unlock the history of life on our planet.

Play the Evolution Lab: http://www.pbs.org/nova/labs/lab/evolution/

Find discussion questions for this video and other resources in the Evolution Lab collection on PBS LearningMedia: http://www.pbslearningmedia.org/resource/nvev-sci-fossils/fossils-rocking-the-earth/

NOVA Labs Facebook: https://www.facebook.com/theNOVALabs NOVA Labs Twitter: https://twitter.com/theNOVALabs

Credits: Ari Daniel, Writer/Narrator/Producer Tilapia Film, Animation APM Music, Music

Additional photography: • Joel Cracraft headshot: Ari Daniel • Proconsul image: http://en.wikipedia.org/wiki/Proconsul_(primate)#mediaviewer/File:Proconsul_NT.jpg • Tiktaalik image: http://vireo.ansp.org/search.html?Form=Search&SEARCHBY=Common&KEYWORDS=tiktaalik&RESULTS=100&Search2=Search