Brush rabbit the drier seasons while grasses are used in the wetter seasons in relation to growth of annual vegetation. Use of habitat also probably is related to the breeding season. The brush rabbit is smaller than many of the other cottontails, and unlike most of them, the underside of its tail is grey rather than white (which may be why its common name does not include the word "cottontail"). The upperside of the brush rabbit's fur varies from light brown to gray in color, while the underside is usually always white. Adult rabbits measure anywhere from 10–14 inches long and rarely
Domestic rabbit generally, especially domestic ones. More recently, the term "kit" or "kitten" has been used to refer to a young rabbit. A young hare is called a "leveret"; this term is sometimes informally applied to a young rabbit as well. A group of rabbits is known as a "colony" or a "nest". The study of rabbit genetics is of interest to fanciers, the fiber & fur industry, medical researchers, and the meat industry. Among rabbit fanciers, the genetics of rabbit health and diversity are paramount. The fiber & fur industry focuses on the genetics of coat color and hair properties. In