The typical lifespan of a coyote is from 12 to 15 years, although some individuals may live up to 21 years, with a theoretical lifespan ranging from 10 years and 11 months to 21 years and 10 months. The age at which the species reaches sexual maturity ranges from 7 months and 3 weeks to 1 year and 1 month. A coyote pup’s eyes open between 1 week and 3 days and 2 weeks and 2 days of age, and it begins to walk between 2 weeks and 4 days and 4 weeks. During the embryonic stage, the fetus develops inside the mother, receiving nourishment through the placenta and growing rapidly. The young are born blind and toothless, living in a den, drinking their mother’s milk, and gaining weight quickly during the pup stage. An adult coyote hunts, may live in pairs or small groups, and produces offspring, with this adult stage lasting from 1 to 20 years.