By weight, Bone is five times stronger than steel.
417
Most elephants weigh less than a blue whale's tongue.
442
The cat brain weighs about 30g.
167
You burn more calories sleeping than you do watching television.
348
The elephant brain weighs about 6,000g.
274
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
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66