The cat brain weighs about 30g.
167
The average person's skin weighs twice as much as their brain.
131
A hummingbird weighs less than a penny.
1k
You burn more calories sleeping than you do watching television.
348
Fidgeting can burn about 350 calories a day.
201
The elephant brain weighs about 6,000g.
274
The earth is approx. 6,588,000,000,000,000,000 tons.
175
