joey

marsupial

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kangaroos

  • Western gray kangaroo (Macropus fuliginosus).
    In kangaroo: Reproduction and development

    The young kangaroo (“joey”) is born at a very immature stage, when it is only about 2 cm (1 inch) long and weighs less than a gram (0.04 ounce). Immediately after birth, it uses its already clawed and well-developed forelimbs to crawl up the mother’s body and enter…

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koalas

  • koala
    In koala

    The youngster (called a joey) first puts its head out of the pouch at about five months of age. For up to six weeks it is weaned on a soupy predigested eucalyptus called pap that is lapped directly from the mother’s anus. Pap is derived from the cecum. After…

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