Center for Educational Technologies
Earth Science Explorer: Dinosaur Floor
Take a tour of the dinosaur floor and you'll read several theories about why dinosaurs became extinct.
Lawrence Berkeley National Laboratory
Berkeley Lab: The Fruitful & Inventive Mind of Scientist Luis Alvarez
This article, reprinted from the fall 1979 LBL News Magazine, was written about Dr. Luis Alvarez and his part in the study of geological sediments and the great extinctions.
![Indiana Univ. Bloomington: Geo Notes: Dinosaur Fossils Not Found in Indiana [Pdf] Handout](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Indiana Univ. Bloomington: Geo Notes: Dinosaur Fossils Not Found in Indiana [Pdf] Handout")
Indiana University
Indiana Univ. Bloomington: Geo Notes: Dinosaur Fossils Not Found in Indiana [Pdf]
Discusses the mass extinction event that wiped out many prehistoric animals 65 million years ago and why there are no dinosaur fossils to be found in Indiana.
Canadian Museum of Nature
Canadian Museum of Nature: Natural History Notebooks
A great reference source for a variety of vertebrate and invertebrate animals. This exhaustive resource also has some prehistoric extinct animals that students can compare to their living counterparts to increase their understanding of...
University of California
Ucmp: Georges Cuvier
This site from the University of California, Berkeley offers a biography of George Cuvier. Scientific ideas of George Cuvier are presented, such as those related to comparative anatomy, fossils, the idea of extinction, and others....
American Institute of Biological Sciences
Action Bioscience: Why Do We Need an Amphibian Ark?
Amphibians have a challenge to rise above and are unable to succeed without the help of a vision like Amphibian Ark. This program is viewed to be a global effort to protect amphibians from extinction and promote the benefits these life...
National Center for Ecological Analysis and Synthesis, University of California Santa Barbara
Kids Do Ecology: Endangered Species and Conservation Biology
Find out about conservation biology as it relates to endangered and threatened species. Learn about the factors contributing to the loss of species and what efforts have helped bring some animals back form the brink of extinction.
University of California
University of California: The Age of Mammals
This online chapter of a book studying biodiversity and conservation explores the evolution of mammals, from the extinction of the dinosaurs to the evolution of humans.
A-Z Animals
A Z Animals: Reference: Evolution
This entry identifies the defining characteritics of animal evolution, including adaptation, speciation, extinction, animal parternships and natural selection.
Read Works
Read Works: The Woolly Mammoth
[Free Registration/Login Required] An informational text about the woolly mammoth, their importance to humans during the Ice Age, and possible reasons why they became extinct. A question sheet is available to help students build skills...
University of Minnesota
University of Minnesota: Sea Otter
Analysis of the history of the sea otter in North America, focusing on its role in the European fur trade of the late 18th Century, this University of Minnesota web page is concise but thorough. The nations most involved in the...
Museums Victoria
Museum Victoria: Wild: Thylacine (Thylacinus Cynocephalus)
Information about Thylacines, also known as Tasmanian Tigers. They became extinct after 100 years of Europeans settling in Tasmania.
Other
Scientists Say Star Collision Caused Dinosaur Extinction
"Israeli scientists have a new theory on why the dinosaurs became extinct: cosmic radiation that bombarded the Earth following the collision of two neutron stars." This article discusses the details of the theory.
University of California
Ucmp: What Killed the Dinosaurs?
This UC Berkeley site extensively covers the death of the dinosaurs. It includes history, theories, invalid hypotheses, and current arguments.
National Humanities Center
National Humanities Center: Teacher Serve: Paleoindians and the Great Pleistocene Die Off
Article discusses Paleoindian migration and animal extinction at the end of the Pleistocene era and explores what we can learn about conservation given what we know about Pleistocene climate and extinction.
Other
Black Hills Institute of Geological Research, Inc.: Ammonoids
Ammonoids, more commonly referred to as Ammonites, are the extinct ancestors of today's octopus, squid and nautilus. This page provides excellent information about these creatures, as well as diagrams and pictures.
Concord Consortium
Concord Consortium: Stem Resources: Changes in the Environment
An activity to help students understand that as the environment changes, plants and animals must evolve to stay alive. Students watch as a mystery plants grow in a changing environment to see if they will evolve or go extinct.
Science Buddies
Science Buddies: What Is the Woolly Mammoth's Closest Living Relative?
Although Woolly Mammoths have been extinct for thousands of years, scientists continue to learn more and more about this mighty animal. Some of the most exciting new research is being produced by looking at DNA extracted from the hair...
Other
The Nature Conservancy of Hawaii: A Guide to the Order of Trilobites
The trilobite of the months greets you on this award winning site that provides an immense data base of facts on this fascinating but extinct arthropod. Start with the Introduction in the left hand menu bar for easy to understand...
CK-12 Foundation
Ck 12: Episd: Life During the Paleozoic
[Free Registration/Login may be required to access all resource tools.] From the beginning with the Cambrian explosion and ending with the Permian extinction students will go in depth studying the Paleozoic Era that occurred hundreds of...
BBC
Bbc Nature: Prehistoric Life: Pleistocene Epoch
Overview of the Earth in the Pleistocene Epoch told by photos, news, and external links with an emphasis on what grew then, what lived then, the causes of mass extinction, types of fossils, and what life was like in general.
BBC
Bbc Nature: Prehistoric Life: Cretaceous Period
Overview of the Earth in the Cretaceous Period told by photos, news, and external links with an emphasis on what grew and lived then, the causes of mass extinction, types of fossils, and what life was like in general.
Australian Museum
Australian Museum: Animals
This online site for the Australian Museum introduces the nature and culture of this unique continent. This particular section focuses on the creatures of Australia including spiders, fish, birds, reptiles, mammals, insects, frogs,...
Better Lesson
Better Lesson: Birds Help Their Young Survive (Bald Eagles)
Birds protect their young in some cool ways! See how our national bird cares for its chicks. Students will read a National Geographic article about Eagles becoming extinct, and will watch a video on Iowa Bald Eagle cameras. Students will...
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