Evolutionary Biology
Charles Darwin III: Descent with modification
Further Exploration
Mechanisms: Descent with modification
University of California Museum of Paleontology and National Center for Science Education - Understanding Evolution
PBS - A comprehensive, content-rich site on the past and possible future implications of evolution.
A collaborative Internet project containing information about phylogeny and biodiversity.
Cambridge University Library
Biography

The Autobiography of Charles Darwin

Classics
Acceptance Speech on Receiving the Darwin-Wallace Medal
Alfred Wallace
Charles Darwin on Phylogeny and "Tree-thinking"
Read how Darwin compared the paths of descent to trunks, branches, stems and twigs.
Darwin Online
News & Events
Evolutionary Fast Forward: Finch Adaptation
National Geographic
How food and flavor drove human evolution
National Geographic - explains how human evolution and taste are intimately linked.
News from around the world of science.
Research
UCMP Exhibit Hall - explore the ancestor/descendant relationships which connect all organisms.
Google - Research database allows searching of the scholarly literature.
Experiment!
PBS - An interactive tool that demonstrates the concept of descent with modification in a population of birds known as honeycreepers.
Next Generation Science Standards (NGSS)
Next Generation Science Standards: For States, By States
National Academies Press: A Framework for K-12 Science Education