This is a very good introduction to the role evolution plays in the development of biodiversity. These topics and extinction are explained with the use of colorful interactive pictures.

Visit this website to read about the extinctions that have occured throughout Earth's history. Provided are links to very brief summaries of the extinctions (minor and major) that occured during specific periods of time.

Find information about diversity among genes, species, and ecosystems that helps answer questions about the importance of biodiversity and how we can save species from extinction.

This second lesson in a course on dinosaurs is devoted to extinction. There are group activities, discussion of the idea, and a way to assess what the students have learned.

Launch the GeoStory to find out about hominins. There are many, many extinct hominins, a fraction of which are represented in this activity.

See the biodiversity and evolutionary of birds in this mural, titled "From So Simple a Beginning,". Mural features the world of birds and shows bird families including extinct ancestors.

One of the major causes of species extinction is the introduction of alien species. Information about ten different invasive species is presented. Find out how well you know the information by matching alien species with the effects...

Elementary students will appreciate the cartoon style fact clips as the evolution of life on earth is laid out. Diversity, survival of the fittest, and ideas to help the environment are all included. An entertaining site for younger...

In this lesson, students investigate the moral, economic and ecological impacts of the extinction of various animal species. Students first assess how and why people support and refute actions that lead to the extinction of animals. They...

"One of the great mysteries in science is the extinction of the dinosaurs at the end of the Mesozoic Era some 65 million years ago. Who (or more likely what) caused it is unknown and a subject of great debate." Many theories are touched...

The first meteorite fossil discovered in this period when tests can be run on it, was found at Chicxulub in Northeastern Yucatan, Mexico. Scientists believe it is part of the meteorite which made the dinosaurs extinct.

One of the largest of the 'big cats', the tiger (Panthera tigris) is an instantly recognisable animal and an iconic symbol of conservation. Nine different subspecies of this charismatic carnivore are recognised, three of which became...

A contour map from 1916 of Crater Lake in Oregon, showing elevations in feet above sea level. Crater Lake lies within the caldera of an extinct volcano (Mount Mazama), and the map indicates its depth at 2000 feet, surface elevation at...

The park was created in 1983 to protect the fauna and flora of the rainforests that are characteristic of this region of the Andes. There is a high level of endemism among the fauna and flora found in the park. The yellow-tailed woolly...

This article describes a British project to store frozen samples of DNA from endangered species. The goal is to preserve genetic information, should a species go extinct.

In this New York Times lesson plan, students explore wildlife conservation by investigating the reintroduction of species into their natural habitats and researching a species nearing extinction. Studens then defend the protection of the...

Students explore wildlife conservation by investigating animal species that are near extinction due to their value as commodities. Students defend the protection of an endangered species researched in class by creating an informational...

Excellent overview of early migration theories, including Bering Land Bridge (Clovis), Coastal Migration Route, Megafauna extinction, European hypothesis, etc. Site offers additional links that expand on theories as well as a timeline...

Polar bears have been officially listed as "threatened" under the United States Endangered Species Act. The belief is that the loss of Arctic sea ice in a warming climate could lead them toward extinction in less than four decades.Learn...

This is an Ammonoid, more commonly referred to as an Ammonite, an extinct ancestor of today's octopus, squid and nautilus.

Ammonoids, more commonly referred to as Ammonites, are the extinct ancestors of today's octopus, squid and nautilus. This page shows several types.

Shanawdithit, the last known survivor of the Beothuk nation died in 1829. Follow the tragic events that lead to the extinction of these proud people who fell victim to European diseases and other events.

Francis Bacon, 1st Viscount St Alban KC QC (22 January 1561 - 9 April 1626) was an English philosopher, statesman, and author. He served both as Attorney General and Lord Chancellor of England. He is also known as a catalyst of the...

Photo of trilobite fossil.