|
|
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
Excessive alcohol use costs the country approximately $235 billion every year.