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They are marsupials.

A kangaroo has a strong back bone and four legs. The hind legs are stronger than the forelegs.

Kangaroos are known for their powerful legs, and all members of the kangaroo family share this characteristic of large, strong hind legs with elongated feet, and short forelegs. The female kangaroo has a pouch for the joey (baby). She gives birth to a single undeveloped young which crawls up to the pouch to continue its final stages of development.

Kangaroos are well known for their jumping capabilities and use their long, powerful, muscular tails to help balance. Because they are constantly on the alert for predators, they have ears with acute sensitivity, which can twist in any direction.

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 known as embryonic diapause. She can also produce two different types of milk to suit the needs of two different aged joeys. She might have a more mature joey that spends less time in the pouch, while a very young embryo has attached itself to a teat. Each joey has different milk requirements - which the mother is able to supply.

Kangaroos are able to travel long distances at a high speed, expending very little energy. They are very energy-efficient, and this is linked directly to the physical action of bringing their hind legs up with each hop. Every hop literally refills the lungs. Kangaroos have large, strong tendons in their hind legs which act as "springs". The springing motion requires less energy than running does, so kangaroos are able to bound for longer distances than other mammals with the standard four legs can run.

Kangaroos are strong swimmers. Many parts of Australia are subject to seasonal flooding rains, but the kangaroo's body shape does not prohibit it from swimming. In fact, kangaroos have been observed swimming to offshore islands off the southern coast. This is the only time the kangaroo's hind legs move independently of each other.

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Jordi Grant

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12y ago

They are marsupials.

A kangaroo has a strong back bone and four legs. The hind legs are stronger than the forelegs.

Kangaroos are known for their powerful legs, and all members of the kangaroo family share this characteristic of large, strong hind legs with elongated feet, and short forelegs. The female kangaroo has a pouch for the joey (baby). She gives birth to a single undeveloped young which crawls up to the pouch to continue its final stages of development.

Kangaroos are well known for their jumping capabilities and use their long, powerful, muscular tails to help balance. Because they are constantly on the alert for predators, they have ears with acute sensitivity, which can twist in any direction.

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 known as embryonic diapause. She can also produce two different types of milk to suit the needs of two different aged joeys. She might have a more mature joey that spends less time in the pouch, while a very young embryo has attached itself to a teat. Each joey has different milk requirements - which the mother is able to supply.

Kangaroos are able to travel long distances at a high speed, expending very little energy. They are very energy-efficient, and this is linked directly to the physical action of bringing their hind legs up with each hop. Every hop literally refills the lungs. Kangaroos have large, strong tendons in their hind legs which act as "springs". The springing motion requires less energy than running does, so kangaroos are able to bound for longer distances than other mammals with the standard four legs can run.

Kangaroos are strong swimmers. Many parts of Australia are subject to seasonal flooding rains, but the kangaroo's body shape does not prohibit it from swimming. In fact, kangaroos have been observed swimming to offshore islands off the southern coast. This is the only time the kangaroo's hind legs move independently of each other.

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