This species often lives in large groups known as mobs. These mobs can range in numbers anywhere from small groups to more than hundred kangaroos. The kangaroo is a highly social species, and often engages in nose touching or sniffing to build cohesion within the group. Boxing between males in the group is used to establish dominance. The dominant male leads the mob and has exclusive access to the females for mating.
A baby kangaroo is born only after about a month-long gestation period. Like all marsupials, the female kangaroo has a pouch, called a marsupium. Immediately after birth, the newborn—which is born hairless, blind, and under an inch in length—crawls into the pouch where it nurses and continues to develop. The joey, or baby kangaroo, remains in the pouch from anywhere between 120 and 400 days, depending on species. Even after leaving the pouch, it continues to feed off the mother for approximately a year and a half. Females produce two different types of milk, one for newborns and another for more mature joeys. During periods of drought, a female kangaroo loses the ability to conceive. As necessary resources are again available to the population, a female regains the ability to have offspring. In good conditions, a female gives birth annually.
A baby kangaroo is born only after about a month-long gestation period. Like all marsupials, the female kangaroo has a pouch, called a marsupium. Immediately after birth, the newborn—which is born hairless, blind, and under an inch in length—crawls into the pouch where it nurses and continues to develop. The joey, or baby kangaroo, remains in the pouch from anywhere between 120 and 400 days, depending on species. Even after leaving the pouch, it continues to feed off the mother for approximately a year and a half. Females produce two different types of milk, one for newborns and another for more mature joeys. During periods of drought, a female kangaroo loses the ability to conceive. As necessary resources are again available to the population, a female regains the ability to have offspring. In good conditions, a female gives birth annually.