Marsupial

Evidence of fossils clearly indicates that marsupials started from the New World. The oldest fossilized fossils (found in China and North America) dates back to the Cretaceous (145-66 million years ago). Their existence in Australia and neighboring islands is thought to have occurred at an immigration event where ancestral marsupial groups settled in Australia through land contact with South America via Antarctica. Whether it occurred before the emergence of placental mammals, or whether the placenta reached Australia, it is a controversial topic, whether it dies quickly or not. About 65 million years ago, Australia was separated from groups of all other continents, bags of bags evolved into various shapes. One of them is Diprotodon (huge wombat), and mastodon. A lot of comparable things. In South America, they survived in the placenta and formed an important part of the new tropical mammal population. Marsupials also lived in Europe, Asia and North Africa from 125 million to 14 million years ago.

In Australia, during the Pleistocene (about 2.6 million to 11, 700 years ago), about 50,000 to 45,000 years ago, indigenous hunting, especially burning scenery, brought several large species It is controversial. (Giant animal) disappearance. But through humanity's facilities, marsupials are brought to nearby Australian islands, especially New Zealand. In New Ireland, gray couscous (Phalanger orientalis) was introduced more than 1,000 years ago, and the same species was shipped to Timor more than 4,000 years ago. In Australia, Trichosurus vulpecula is an example of rich marsupials that adapts easily to changing circumstances, even in some downtown areas. Adaptability to various areas is due to the resistance to various foods including household garbage. Possum in Virginia has had a similar success in North America

Beginning in the early nineteenth century, serious British colonial Australia brought hunting and capturing methods, liquidation of large-scale land, and the introduction of foxes, rabbits, cats and sheep, and quickly annihilated many others In order to open up some kangaroos and kangaroos. Devils including Koalas and Tasmania are approaching the same destiny.

Marsupials have been found mainly in Australia, but Possum was found in North America. Australian marsupials include kangaroos, koalas, raccoons, raccoons, Tasmanian devils, and a few other species. Most species of marsupials have bags that premature premature larvae live after birth, receive milk, and continue to grow. The difference between marsupials and intrinsic persons is that the connection of the placenta is not that complicated. The young man was born in his young age and rolled up the nipple in the bag.

A pouch is a prominent feature of women's marsupials and monopores (rarely in men such as the Possum and extinct thyroid glands in water), Marsupials means "pockets" after Latin marsupials I will. Marsupials born a living but relatively undeveloped fetus called Joey. When Joey was born, it went up from the inside of the mother to the pouch. The pouch is a skin fold with an opening over the nipple. In the bag, the child of the blind man sticks to the mother's nipple and remains attached as long as it needs to grow and grow to early childhood.

The bagged class is a non-placental mammal belonging to infraclass (or order) Marsupialia. A woman in a bag usually has an outer bag (its name is called Marsupium derived from 'Marsupial'). Premature babies grow from birth to early childhood. A newborn baby usually gets into the bag after birth and adheres to the nipple (nipple) secreting milk until it can survive outside the bag. This period of bags is similar to the developmental delay of placental mammals in the uterus.