|
|
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
![The puppet, created for the Tbilisi Marionette Theatre, is controlled by forces hidden from public ...](https://biology-forums.com/gallery/47/medium_660365_25_12_16_1_15_24_244191928.jpeg)
![Both individuals and organizations do impression management, trying to communicate messages about ...](https://biology-forums.com/gallery/27/medium_660366_10_04_17_9_02_01_276192333.png)