The cat brain weighs about 30g.
167
The elephant brain weighs about 6,000g.
274
A hummingbird weighs less than a penny.
1k
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Sex burns about 360 calories per hour.
860
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 average person's skin weighs twice as much as their brain.
131