Only about 2% of the world population has green eyes.
36
If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
21
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14