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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
![The primate dental formula illustrated for (a) the lower dentition of an Old World monkey and (b) th](https://biology-forums.com/gallery/47/medium_275816_26_01_15_5_17_45_203701397.jpeg)
![A the subfossil lemurs of Madagascar filled a variety of niches occupied elsewhere by monkeys, as sh](https://biology-forums.com/gallery/47/medium_274477_04_02_15_12_29_04_205931233.jpeg)