How long does a young kangaroo remain in its mother’s pouch?

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A young kangaroo, known as a joey, is born in a highly immature state and immediately crawls into the mother’s marsupium, or pouch, to continue its development.12

Once inside, the joey attaches itself to a teat. As it grows, it becomes more active and begins to spend increasing amounts of time outside the pouch. A young kangaroo typically leaves the pouch completely at 7 to 10 months of age.1