BBC
Bbc Nature: Prehistoric Life: Jurassic Period
Overview of the Earth in the Jurassic Period told by photos, news, videos, and external links with 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.
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.
CK-12 Foundation
Ck 12: Life Science: Human Causes of Extinction
[Free Registration/Login may be required to access all resource tools.] In addition to habitat destruction, other human-caused problems are also threatening many species. These include issues associated with climate change, pollution,...
BBC
Bbc Nature: Prehistoric Life: Cambrian Period
Overview of the Earth in the Cambrian 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.
BBC
Bbc Nature: Prehistoric Life: Devonian Period
Overview of the Earth in the Devonian 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.
BBC
Bbc Nature: Prehistoric Life
Explore life on ancient Earth with this site! Students can walk with dinosaurs to see what Earth looked like or investigate Earth's history. The site includes articles, pictures, timelines, and lots more.
Other
Who Dunnit to the Dinosaurs?
"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...
Annenberg Foundation
Annenberg Learner: The Habitable Planet: Unit 9: Biodiversity Decline
This is an extensive learning module on biodiversity and its decline. It looks at ways biodiversity is threatened, the possibility of another mass extinction, the causes and consequences of habitat loss, factors that drive biodiversity...