Rat

Rats are usually black to light brown in colour with a lighter underside. A typical rat will be 1 hand long with a further hand to the tail. They are nocturnal and omnivorous, with a preference for grains. In a suitable environment they will breed throughout the year, with a female producing three to six litters of up to twenty young. Females may regulate their production of offspring during times when food is scarce, throwing as few as only one litter a year. Rats live for about 2-3 years. Social groups of up to sixty can be formed.