Endangered species are animals whose population numbers have been decreased to a critical level. The Endangered Species Act is meant to protect fish, wildlife, and plants that are listed as threatened or endangered species in the United States.

Evolution is a change in the traits of living organisms over time.

You are about to go on an exciting animal adventure. First, you will see a presentation about some endangered species around the world. Then you will use the internet to research your favorite animal. While you are researching your animal, try to answer this question: Are these species endangered because of humans or is this all a part of the evolutionary process?