When a nursing baby short-beaked echidna begins to grow spines, it leaves its mother’s pouch.It comes back to nurse at her milk patches for several months. Native to Tasmania and New Guinea, echidnas are monotremes unlike most other mammals, monotremes never evolved live birth, but instead lay eggs like their amniote ancestors. Monotremes produce milk for their young. But they lack nipples; instead, their milk oozes out of ducts of their mammary glands onto specialized patches of skin.

What’s the smallest mammal that ever lived? The tiny creature namedBatodonoides vanhouteni was so small, it could have perched on a pencil. With an estimated body weight of just 1.3 grams less than a twentieth of an ounce it weighed only about as much as a dollar bill. It lived approximately 50 million years ago and is related to modern shrews and moles. Batodonoides was named by American Museum of Natural History paleontologist Michael Novacek.Also it's frigid cuteeee. 

The Angora Rabbit has a long history and believe it or not is one of the oldest types of domesticated rabbits. This particular species of rabbit was extremely popular with French royalty way back in the mid-eighteenth century. Interestingly enough, it wasn’t until the 20th century that they made their way across the pond to North America but I guess it is better late than never as I am sure these large, fluffy animals make great pets. There are numerous individual breeds of Angora Rabbits, however, only 4 our recognized by the Angora Rabbit Breeders Association. These include the English, French, Satin and of course the Giant Angora Rabbit.

There are more than 60 different species of opossum, which are often called possums. The most notable is the Virginia opossum or common opossum the only marsupial found in the United States and Canada.A female opossum gives birth to helpless young as tiny as honeybees. Babies immediately crawl into the mother's pouch, where they continue to develop. As they get larger, they will go in and out of the pouch and sometimes ride on the mother's back as she hunts for food. Opossums may give birth to as many as 20 babies in a litter, but fewer than half of them survive. Some never even make it as far as the pouch.