Pain occurs when sounds are above 130 db.
124
We share 70% of our DNA with a slug.
218
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Gorillas can catch human colds and other illnesses.
205
Babies crawl an average of 200m a day.
212
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Your thumb is about the same size as your nose.
124