After reptiles, dinosaurs, mammals, birds, flowers, and bees evolved, great apes appeared and — 11.7 million years later — Homo sapiens made their worldwide debut...
...and that was only 200,000 years ago (0.004% of Earth's history). Or, if you condense the timeline of the universe into the size of a football field, all human history would be about as big as your hand.
The rest of human history may be unwritten, but we can still use science to explain the past and predict the future!
What's 🐘 have to do with 🔬? Follow generalelectric on Snapchat to find out — 12.10.14 through 12.12.14.