The first episode begins with an illustration of the giant impact hypothesis: approximately 4.4 billion years ago when the Earth was formed, it is con...
The reptiles evolve, and the race for survival continues on land. Giant arthropods lurk in the Carboniferous forest, and sail-backed mammal-like repti...
By the late Permian period, a furry, ferret-like mammal had evolved onto two feet, vaguely resembling the human form. Could this be our ancestor?
