This week we’ve introduced the kids to Walking with Dinosaurs, which takes you to a place and time were reptiles were huge and CGI budgets were relatively small. We were two episodes into the the six-part series when the five year-old noted that there only seems to be a handful of different species of dinosaurs around in any given epoch. Generally, each episode features a meat eater, a plant eater, a very big meat eater and a turtle.