What's the use of mother kangaroo's bag?

It is used to raise kangaroos. Bags are exclusive to female kangaroos and are born with them.

All female kangaroos have a pouch with four nipples in it. "Cubs" or kangaroos are kept in nursery bags until they can survive in the outside world.

Kangaroos breed once or twice a year, and baby kangaroos are born about 30-40 days after fertilization. They are very tiny, have no vision and little hair, and are stored in their mother's pouch immediately after birth. It was not until 6-7 months ago that I began to leave the pouch for a short time to study life. I can't be weaned and leave the nursing bag until one year later, but I still live near the kangaroo mother and get help and protection at any time. Mother kangaroo can make a kangaroo outside the bag, a kangaroo inside the bag and a kangaroo born at the same time.

Extended data

Kangaroos belong to Kangaroo family, including Kangaroo suborder, Kangaroo order, Striata class, Mammalia class, Chordata class and animal kingdom. They are famous mammals in Australia and occupy a very important ecological position in Australia. Kangaroos have short forelimbs and developed hind limbs. They often lift their forelimbs and jump on the ground with their hind legs instead of running. Kangaroos are generally 2.6 meters tall and weigh about 80 kilograms.

Kangaroo pictures are often used as symbols of Australian countries, such as the green triangle kangaroo used to represent Australian manufacturing. Pictures of kangaroos often appear on Australian highways, which means kangaroos often appear nearby, especially when driving at night. Kangaroos have poor eyesight, are curious about the light, and will jump over to "see". However, because of the high reproduction rate of kangaroos, even if they are accidentally killed, they are not responsible. There will be a special person to take away the kangaroo's body.

Baidu encyclopedia-kangaroo

People's Government of Henan Province-Australian Kangaroo