Years ago, we chanced upon a theoretical clock that described how long Homo sapiens had walked the Earth, if all of creation was fit into 24 hours. Right from its formation in the Big Bang, to the evolution of single-celled algae, plants, and eventually the dinosaurs&mdashmankind, it seemed, had been around for just over a minute. It&rsquos impossible for our brains to ever grasp this passage of time, and the changes it wrought upon the landscape. A platform called Ancient Earth, however, offers a well-researched push in that direction.
