Write a two paragraphs about marsupials

Marsupials are the group of mammals commonly thought of as pouched mammals (like the wallaby and kangaroo at left). They give live birth, but they do not have long gestation times like placental mammals. Instead, they give birth very early and the young animal, essentially a helpless embryo, climbs from the mother's birth canal to the nipples.

Explanation:

There  

Red-necked Wallaby

Red-necked Wallaby. Photo by Gerald and Buff Corsi, © 2002 California Academy of Sciences.

 Red Kangaroo

Red Kangaroo. Photo by Gerald and Buff Corsi, © 2002 California Academy of Sciences.

 it grabs on with its mouth and continues to develop, often for weeks or months depending on the species. The short gestation time is due to having a yolk-type placenta in the mother marsupial. Placental mammals nourish the developing embryo using the mother's blood supply, allowing longer gestation times.