Babies' eyes do not produce tears until the baby is approximately six to eight weeks old.
58
Only 2% of the Earth's population are natural redheads.
13
Babies crawl an average of 200m a day.
212
The offspring of two sets of identical twins are legally cousins but genetically siblings.
63
A person swallows approximately 295 times while eating dinner.
63
There are two credit cards for every person in the United States.
2
Someone on Earth reports seeing a UFO every three minutes.
180