CK-12 Foundation
Ck 12: Life Science: Mass Extinctions
[Free Registration/Login may be required to access all resource tools.] An organism goes extinct when all of the members of a species die out and no more members remain. Extinctions are part of natural selection. Species often go extinct...
Bagheera
Bagheera.com: Extinct in the Wild Heath Hen
This article is about the now extinct heath hen. There is a lot to be learned from organisms that have died out to help prevent other extinctions. The questions for thought are excellent discussion starters.
CK-12 Foundation
Ck 12: Earth Science: Adaptation and Evolution of Populations
[Free Registration/Login may be required to access all resource tools.] Explains how natural selection favors certain traits in a population so that the organism adapts to its environment, and that changes in the genes over time cause...
Alabama Learning Exchange
Alex: Endangered Species
Students research and create a brochure project on an endangered species of their choice integrating aspects of math, science, social studies, art, reading and writing. This project allows the students to make connections across the...
Tree of Life Project
Reptiles: Synapsida
This site contains general information about the extinct link between reptiles and mammals. The Synapsida organisms are the link.
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