Diversity of Mammals

By Rosario Garcia 3rd Period Biology

Monotremes

Monotremes lay eggs, but feed their young milk. Examples: Platypus, Spiny Anteaters, echidnas.

Marsupials

Marsupials bear their young that complete their development in an external pouch.Examples: Wallabies, Kangaroos

Placental Mammals

In placental mammals, nutrients, oxygen, carbon dioxide and wastes are exchanged with the mother embryo together through the placenta. Most mammals are placental mammals.

Biology of Mammals

Similar ecological opportunities on the different continents have produced some striking examples of convergent evolution in mammals.

Works Cited

Greg Wood. FILE-AUSTRALIA-NATURE-PLATYPUS-BABY. Getty Images. 06 May. 2008. eLibrary. Web. 10 Mar. 2010. dv426053. Getty Images. 03 Mar. 2010. eLibrary. Web. 10 Mar. 2010. Mychele Dantau. A zoo employee gives some milk to Hercule, a four-day- old maki.... Getty Images. 17 Apr. 2007. eLibrary. Web. 10 Mar. 2010. Miller, Kenneth R., and Joseph S. Levine. Prentice Hall Biology. Upper Saddle River, N.J.: Pearson/Prentice Hall, 2008. Print.