Lifestyle
The cornea and cartilage are the only two types of tissues in the human body that lack blood vessels.
If you were to stretch the entire circulatory system of a child out in a straight line, it would span 60,000 miles.
Did you know that the human thighbone, or femur, is stronger than concrete?
Every individual has a unique tongue print.
As we age, human noses and ears often tends to grow larger.