The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
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
Only about 2% of the world population has green eyes.
36
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The largest breed of rabbit is the Flemish Giant.
65
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34