Pluto is smaller than Russia.
9
Water is actually naturally blue.
48
If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
1k
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Penguins have a gland above their eye that turns saltwater into freshwater.
12