Guinea pigs, also known as cavies, do not have tails. They have round-shaped bodies and short legs, and are furry and sociable creatures. There are a variety of different guinea pig breeds with different coat lengths and colors.
According to the Royal Society for the Prevention of Cruelty to Animals, guinea pigs usually live up to five or six years, but they can live longer. Typically, guinea pigs remain active an average of 20 hours a day, sleeping only for a short time. Guinea pigs as pets have specific housing and dietary needs. Vitamin C is a dietary requirement because guinea pigs lack an enzyme that synthesizes the vitamin, and they can only store it for a short amount of time. Guinea pigs come from the Andes in South America among the lower slopes and grasslands.