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Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
Did you know?
The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
Did you know?
The average adult has about 21 square feet of skin.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.