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How long does an embryo kangroo stay inside the mother before crawling up to the pouch?
This depends on a number of factors. Primarily, it is dependent on the species, and on whether that species has 'embryonic diapause'.
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 many 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 of many species 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 same situation occurs for wallabies, also members of the kangaroo family. There are many different species of wallaby but, on average, they have a gestation period of 30 days and spend 8-9 months in the pouch.
What else can I help you with?
What is the difference of the nourishment of an embryo inside a mother not in an egg and the nourishment of an embryo inside an egg?
the developing embryo is nourished by yolk
How do you enter HOLE in THE wall?
By crawling inside of it.
What are young leaves inside the embryo of a seed called?
Cotyledons are the first young leaves inside the embryo
How does a seed live?
A seed contains an embryo plant which uses the endosperm inside the seed for food before it is planted.
What two important things are inside a seed?
Inside a seed are embryo (the young plant-to-be) and endosperm (a food source for the embryo to use as it starts to grow).
How is a mammalian embryo a parasite?
A mammal embryo is the developing baby inside the mother.
What is another name for a baby plant inside the seed?
The young plant inside a seed is called an embryo. no the embyro is fertilized to create the seed. the answer is an enbryonic plant
A sentence using soot in it?
The soot in the chimney covered the white cat that was crawling inside. The soot in the chimney covered the white cat that was crawling inside.
Why can the embryo survive inside the seed for a long time?
The plant embryo can suvive inside the ssed because it derives its food from the endosperm and cotyledon.
What inside a reptiles embryo provides food?
The yolk inside the egg.
Can the placenta be growing with no embryo inside?
Yes
Where is the food for growing embryo inside the eggs?
The yolk supplies all the nutrients for the growing embryo.
