Are we in the midst of a mass extinction? Is Homo sapiens triggering this mass extinction? Four expert panelists have written responses to the aforementioned questions for this highly informative site.

An overview of the mass extinctions throughout earth history. Each mass extinction has a link to its own page with a list of its possible causes and the species that were most affected.

There are five major causes of extinction: habitat loss, an introduced species, pollution, population growth, and overconsumption. Through this activity, students will create a list of reasons why animals can become extinct.

Information about Thylacines, also known as Tasmanian Tigers. They became extinct after 100 years of Europeans settling in Tasmania.

How do endangered species and animals become extinct? Hunting, pollution, loss of habitat, and introduced species all play a part and are discussed on this site.

Kids: What is an endangered animal? Many species are in danger of becoming extinct. How can we help?

[Free Registration/Login may be required to access all resource tools.] How does genetic variation protect species from extinction? Understand sexual reproduction and the importance of both random fertilization and independent assortment.

One subspecies of the White-eared Pocket Mouse may be extinct, and the other is extremely rare, consisting of isolated, relict populations near the western Mojave Desert in California. White-eared Pocket Mice are nocturnal and probably...

This comprehensive study guide covers the main terms and concepts needed for a unit on the biodiversity crisis.