Yawns are more contagious among people with closer relationships.
163
You can't plow a cotton field with an elephant in North Carolina.
329
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
1k
False teeth are often minutely radioactive.
214