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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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![A typical distillation curve. Heavier molecules evaporate at higher temperatures and contain more ...](https://biology-forums.com/gallery/29/medium_548020_25_05_17_1_36_19_29366542.png)