Despite the name, the primary modern flavoring ingredients in a cola drink are sugar, citrus oils (from oranges, limes, or lemon fruit peel), cinnamon, vanilla, and an acidic flavorant. Manufacturers of cola drinks add trace ingredients to create distinctively different tastes for each brand.
Features of inbred mice. A strength of the laboratory mouse as a model system results from the availability of hundreds of inbred strains which harbor different characteristics, including some that are prone to develop specific types of cancers.
Bubonic plague-Mice are not infected with plague as often as rats, but infections do occur. This disease is spread to humans by fleas. Plague is usually fatal within a few days of infection. It is present in rodents throughout the western United States, and in many other parts of the world ().