Rabbit Genetics
The similarity between the physiology of rabbits and humans makes the rabbit a good model for research into human disease. The most prevalent types of rabbits are cottontails and European rabbits. Domestic rabbits are tame assortments of European rabbits. The Californian, Florida White, and New Zealand White are the most common breeds used in research.
Until 1912 rabbits were classified as rodents. Scientists discovered that the two types of animals differed in several distinct anatomical ways. Rabbits, for instance, have a second pair of upper incisors, known as "peg teeth," that are found behind the two main visible incisors in the upper jaw. Rabbits have elongated hind legs adapted for moving at high speeds over open areas. Rabbits generally move in a hopping motion. They also have webbed toes to keep them from spreading as they hop. Rabbits have flexible necks, which allow them to turn their heads more than rodents. Their spines are long and fragile......
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