This site has the complete text of Charlies Darwin's "Descent of Man."

Stephen Jay Gould, "The bulldog of evolutionary biology," is honored here by Harvard University, where he spend his teaching and writing career. Mention of articles, books, and awards, plus quotes from colleagues, offer an engaging view...

A lesson plan where students analyze a cladogram to understand a derived characteristics between a group of organisms. After analyzing the prepared cladogram, students create their own.

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....

University of California Berkeley offers a good discussion of the natural role that birds play and the importance of this role to man.

A discussion of the fossilized Platyhelminthes that have been found, and offers several different strategies as to how they evolved.

This is a college level lecture on genetic drift, complete with mathmatic formulae, includes special links.

Fossils provide scientists with clues about Earth's past. This site from the University of California's Museum of Paleontology is great for exploring lots of information on fossils.

This page provides an introduction to phylogenetic systematics, the way that biologists reconstruct the pattern of events that have led to the distribution and diversity of life. A tutorial "journey" into the Introduction, Methodology,...

In this biology inquiry lab, students study evolutionary relationships by making observations of preserved animal specimens, developing a question, then investigating by dissecting the specimens provided. This comparative approach offers...

This PBS documentary provides an overview of the microbial world and offers an exciting glimpse into the field of microbiology. Meet scientists from around the world investigating the microbial world in diverse locations, from a...

Use the scientific reasoning and critical thinking to take an in-depth look at the basics of biology.

Peer-edited, educator written science lessons on current bioscience issues. Each lesson correlates to a peer-reviewed article on that topic, and contains questions about the article and a variety of engaging activities for students.

The American Institute of Biological Sciences offers this article by Niles Eldredge, evolutionary theorist and curator at the American Museum of Natural History. Eldredge begins with Darwin's theories and summarizes subsequent thought,...

Discover the scientific data that supports the significance of the Cambrian explosion.

Charles Darwin's theory that all living organisms are connected in some way has been confirmed through intense studies over centuries. Understand the similarities that bond all things living to the same family tree by checking out this...

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...

Find out how fossil evidence has been the major link to learning about Earth's geologic history. See several illustrated interpretations of a geologic time scale in this online biology textbook.

Using diagrams and descriptive illustrations, this college-level biology reference book discusses the development of evolutionary theory.

A BBC news feature explores a twentieth-century "scientific embarrassment." The Piltdown Man fossils, originally thought to present a link between apes and humans, were revealed to be forgeries forty years after being discovered. Find...

With rising temperatures and seas, massive droughts, and changing landscapes, successfully adapting to climate change is increasingly important. For humans, this can mean using technology to find solutions. But for some plants and...

Erin Eastwood details the surprising "back from the dead" discovery of the coelacanth and explains how this fish's fins shed light on the evolutionary movement of vertebrates from water to land. [4:17]

April Tucker peels back each layer of the amniotic egg, revealing how truly extraordinary this evolutionary marvel is. [4:30]

Why do fingers become pruney when they get wet? Mark Changizi examines the evolutionary reasons for pruney fingers, while exploring natural and manmade phenomena, like river networks, that operate similarly. [4:22]