Fidgeting can burn about 350 calories a day.
201
A hummingbird weighs less than a penny.
1k
The cat brain weighs about 30g.
167
A neutron star (what remains after a Super Nova) is so dense that a portion of it the size of a sugar cube would weigh as much as all of humanity, or more than all the cars in the United States.
5
One human hair can support 3 ounces.
191
The average person's skin weighs twice as much as their brain.
131
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Dieters who sleep more take off more fat that those who sleep less.
159