By weight, Bone is five times stronger than steel.
417
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
The elephant brain weighs about 6,000g.
274
You burn more calories sleeping than you do watching television.
348
Sex burns about 360 calories per hour.
860
The average person's skin weighs twice as much as their brain.
131