The average person's skin weighs twice as much as their brain.
131
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Your thumb is about the same size as your nose.
124
Our Right Lungs takes more air than our left lung.
194
Tigers can see 6 times better at night than humans.
305
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
A person can live without food for about a month, but only about a week without water.
156
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89