It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
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