a juvenile kangaroo
fetusnew-born immature = still in embryonic form but able to sit in its mother's pouch and nurseimmature joey - still in pouch but starting to eat predigested eucalyptus leaves in addition to nursingmaturing joey - leaving pouch for short periods of time but still nursing - eating more eucalyptusmature joey - out of pouch but riding on its mother's back and occasionally nursing - about 9 months to 1 year old.adolescent - separated from mother and independent = hits this at about 1 year old.adult - about 3 years for females and 4 years for females
The tree kangaroo has a gestation period of about 39 - 45 days, depending on the species. A joey is born very undeveloped, tiny, blind and hairless, then it crawls into its mother's pouch. It attaches to a nipple for about 90-100 days, and stays in the pouch for a total of 8-9 months. The tree kangaroo reaches reproductive age at about two years old.
There are over 60 species of kangaroos, and their life span varies according to their species. The larger species live the longest, and their average life expectancy in the wild is 10 - 15 years. In captivity, some species have been said to live to 20 years or more.They usually have a life span of about 9-18 years, but may live to be up to 28 years old.
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Koalas breed between August and February. 35 days after conception, the tiny, blind, hairless embryo emerges and moves into its mother's pouch, purely by instinct. At this stage it weighs about half a gram. Once in the mother's pouch, it then latches onto a teat, which swells in its mouth, securing it firmly so it does not fall out of the pouch. The koala baby, called a joey, feeds only on mothers' milk for 6-7 months. To make the transition from mothers' milk to eucalyptus leaves, at about 6-7 months the joey begins to feed on "pap", which is actually a special form of the mother's droppings through which she can pass onto her joey the micro organisms which allow for digestion of eucalyptus leaves. No other animal lives solely on gum leaves, and special proteins are needed to digest them. One of the reasons the koala has a backward-opening pouch is so that the joey can stick its head out and feed on this pap which comes from the mother's own digestive system. When the joey grows too large to fit in its mother's pouch, it still feeds a bit on mother's milk, lying on her stomach to feed, and spending the rest of its time firmly attached to her back. It only leaves "home" when the next breeding season starts. For a diagram of the koala's life cycle, see the related link below.
To answer your question accurately, I need to know which specific stage of the plant life cycle you are referring to. Generally, the plant life cycle includes stages such as germination, growth, reproduction, and seed dispersal. If you specify the stage you have in mind, I can tell you what comes before it.
The mother kangaroo spends most of her adult life pregnant, but in drought times, she has the ability to indefinitely "freeze" the development of the young embryo until food sources are replenished. This is called embryonic diapause. Quite simply, the young joey will not be born until or unless there is enough food to nourish the mother and, through her, the suckling joey.
The life span of the musky rat kangaroo, the smallest of all kangaroo species, is 4-6 years.
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For the first few months of life, a kangaroo joey does nothing more than lie curled up in its mother's pouch, attached to a teat which has swollen in its mouth. This teat provides a continuous source of nourishment for the developing joey. After six or seven months, it begins to be a little more curious about its world, tentatively exploring outside for short trips, but always keeping close to its mother in case of danger.
There are over sixty known species of kangaroo, ranging from the largest, the Red kangaroo, to the smallest, the Musky rat kangaroo. Therefore, gestation periods vary. It should also be noted that kangaroos have the ability to suspend the development of the embryo whilst another joey is still in the pouch, so they can be in a state of continuous pregnancy.The musky rat kangaroo has a gestation period of 19 days, whilst the red kangaroo has a gestation period of about 33 days. Most other kangaroo species have a gestation period of 31-36 days. Most of the development of the joey occurs in the pouch rather than in the womb. Young musky rat kangaroo joeys spend about 21 weeks in the pouch, while red kangaroo joeys spend an average of 9 months in the pouch.However, in reality, pregnancy length may differ. The mother kangaroo spends most of her adult life pregnant, but in drought times, she has the ability to indefinitely "freeze" the development of the young embryo until food sources are replenished. This is called embryonic diapause.The young Joey continues to suckle until it is about 12 months old.