Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Early American humans hunted car-size armadillos and used their shells for houses.
12
It takes approximately 12 hours for food to entirely digest.
93
All 13 minerals necessary for human life can be found in alcohol beverages.
282
Your fingernails grow faster in summer.
744
The human brain is more active during sleep than during the day.
28