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Opossum Research Paper

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OPOSSUM
Evolution
Though not too many studies are conducted on opossums it was recently discovered that the modern opossum traced back to the dinosaur age! According to a study by the University of Florida, fossils, belonging to their ancestors were found in North America and Eurasia. Opossums first appeared around 65 million years ago just around when dinosaurs went extinct. They migrated between north and South America towards the end of the cretaceous period. The North American opossum went extinct nearly 20 million years ago, but when panama emerged and reconnected North and South America the Didelphis Virginian (Virginia Opossum) and the southern opossum migrated to North America.

Reproduction When the mother gives birth to a baby opossum it is usually very tiny …show more content…
They do what is commonly known as “playing possum”. When a fox or a dog is nearby they flip on their sides, stick out there tongue and close their eyes and pretend their dead. This tricks the approaching predator into thinking its dead and gives the opossum a chance to escape.

Interdependence Opossum usually live on their own for most of their lives, although short (about 2-3 years). Brief interactions occur when mating and when groups share winter dens during the winter. The Opossum is a particular mammal due to the fact that is does not occupy a permanent home and is constantly moving. They are very adaptable and can live where ever there is water, food and shelter.
Cellular structure Opossum’s cells are very similar to all other mammals. There cells consist of a nucleus, DNA and nuclear protein. They also consist of an endoplasmic reticulum, lysosomes and a cell membrane.
Metabolism
Opossums are not picky and will eat almost anything, from pieces of scrap to other opossums. Their usual diet consists of carrion, rodents, insects and plants. Food sources may also include dead animals, nuts and

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