|
|
Did you know?
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
Did you know?
More than 4.4billion prescriptions were dispensed within the United States in 2016.
Did you know?
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Did you know?
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Did you know?
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
![Extinction and immigration of bird species on the California Channel Islands between 1917 and 1968 (](https://biology-forums.com/gallery/47/medium_33_19_02_12_5_42_32_20691962.jpeg)
![In 2010 protesters in Washington, D.C., demanded that the Obama administration support liberalized i](https://biology-forums.com/gallery/47/medium_27_24_08_15_1_42_55_22410556.jpeg)