Ideas in Science
Theories, Hypotheses, and Laws
The History of Evolutionary Thought
Understanding Evolution - A detailed look at the research and evidence leading to the theory of evolution.
On the Origin of Species: The Preservation of Favoured Traces
An interactive java applet by Ben Fry (benfry.com) that shows how Darwins Origin of Species was changed and updated over six editions as he uncovered new data about natural selection.
Essays on the Theory of the Earth
G. Cuvier - Full text of this classic 1827 work.
On the Tendency of Varieties to Depart Indefinitely from the Original Type
Letter from Alfred Russel Wallace to Charles Darwin (1858).
News & Events
Fast-reproducing microbes provide a window on natural selection.
From the New York Times
The original research site of the scientists that discovered the fossil link between fish and early amphibians.
Google - Research database allows searching of the scholarly literature.
Next Generation Science Standards (NGSS)
Next Generation Science Standards: For States, By States
National Academies Press: A Framework for K-12 Science Education