The reptiles evolve, and the race for survival continues on land. Giant arthropods lurk in the Carboniferous forest, and sail-backed mammal-like reptiles fight for the survival of their young in the Permian.
Did You Know?
The computer-generated model used for the Dimetrodon hatchlings is actually drastically smaller version of the fully grown Dimetrodon animation, with apparently the same body proportions and color-scheme. So when one of them (the newly hatched animals) is shown climbing up a tree, the viewer is treated to a rather awkward sight, since it looks just like an adult, to which of course it wouldn't be possible to climb up a tree. See more
When the small Edaphosaurus runs behind some fallen tree branches, and then when the Dimetrodon kills it, both times the animals are placed incorrectly into the shot. There is a faint outline around the branches where you can see the rocky background through the animals themselves. See more
Kenneth Branagh - Narrator
Three hundred million years ago, much of the Earth was covered in vast swamp forests. Here nothing is as it seems.