There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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People about to have surgery must tell their health care providers about all supplements they take.
Did you know?
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Did you know?
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
Plant-transpired water vapour mist rising from a tropical rain forest.
Tropical rain forest in Fiji
Tropical Wet and Dry (Aw)
Tropical cyclones
Comparison of A-type Climates
Differences in yield between two wheat varieties at different soil fertility levels