One human hair can support 3 ounces.
191
Most elephants weigh less than a blue whale's tongue.
442
The cat brain weighs about 30g.
167
The elephant brain weighs about 6,000g.
274
The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
240
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