Opossum izzy carvajal

Introduction

They are as a large as a housecat, they have furless black ears and a long tail.

They live in thick forests, open woods, farms and urban areas.

Kingdom: Animalia

Phylum: Chordata

Class: Mammalia

They first evolved 55 million years ago

Morphological & Molecular Evidence

They are related to koalas and kangaroos.

They both have pouches to carry their babies.

Molecular evidence shows how where the pouches are move according to how their structure is and what their habitat is like.

Homologous Structures

The back legs on a kangaroo are used to hop while on a koala they are used to grip trees.

Homologous structures are similar in position but different in function. It shows how over time as they adapt their body parts for their habitats.

Vestigial Structure

I think an opossums tail might be an example of because they don't really have a use for it

A vestigial structure is something that is slowly becoming unnoticable and fuctionless over time

Transitional Fossils

Their eyes have gotten smaller over time.

Transitional fossils are fossils that give us information about a transition between one species to another.

Newborn
Baby
Adult

Comparative Embryology compares and contrasts embryos of different species. It is used to show how all animals are related.

http://www.nationalgeographic.com/animals/mammals/group/opossums/

http://wildlifewaystation.org/animals/species/opossum

https://en.wikipedia.org/wiki/Opossum

https://www.sciencedaily.com/releases/2009/12/091215202320.htm

http://opossumsocietyus.org/faq-opossum/

Credits:

Created with images by royguisinger - "opossum possum teeth"

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