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Koalas have a gestation period of approximately 33-35 days. They are born very undeveloped, barely half a gram in weight and about 2 cm long, and crawl by instinct to the mother's pouch. Here, it latches onto a teat which then swells in the joey's mouth, securing it firmly in place. Koala joeys will spend six to seven months growing and developing in the pouch before they then cling to their mother's back.

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13y ago

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