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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Everyone has one nostril that is larger than the other.
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.
![The meninges. This figure illustrates the location and structure of each layer of the meninges and t](https://biology-forums.com/gallery/47/medium_14755_27_08_12_4_56_12_8217900.jpeg)
![Structure of the ovary and uterine (fallopian) tube. Figure illustrates stages of ovum development a](https://biology-forums.com/gallery/47/medium_14755_28_08_12_1_48_03_8246954.jpeg)