Which documentary was released first, Walking with Cavemen or Life in the Freezer?
Walking with Cavemen Walking with Cavemen is a four-part television documentary series about human evolution produced by the BBC in the United Kingdom. It was originally released in April 2003. It was subsequently presented in the United States as a two-part series by the Discovery Channel and its affiliates. There was an accompanying book of the same title.
Caved In: Prehistoric Terror Caved In: Prehistoric Terror is a 2006 "Sci-Fi Original" motion picture, created by the Sci-Fi channel. It follows a party of tourists who become trapped underground by a cave-in, and who are then killed one by one by giant prehistoric rhinoceros beetles.