|
|
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.
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
![Prolapsed uterus. (a) A prolapse is the abnormal drop of the uterus into the vagina, representing th](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_31_31_9714603.jpeg)
![Propaganda to influence public opinion surrounds us, but most propaganda is covert, difficult to ...](https://biology-forums.com/gallery/27/medium_660366_16_04_17_1_11_17_27883201.png)