A hummingbird weighs less than a penny.
1k
The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
The elephant brain weighs about 6,000g.
274
The earth is approx. 6,588,000,000,000,000,000 tons.
175
You burn more calories sleeping than you do watching television.
348
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 average person's skin weighs twice as much as their brain.
131