Wikipedia offers a site on the topic of sexual selection, including an image and a description of one of the most famous types of sexual selection.

Read about the life and work Ernst Mayr, one of 20th century's leading evolutionary biologists.

Read articles that address the following questions about the end of the 19th-century literature: What are the key tropes of late 19th-century literature? How did writers respond to the desires and anxieties of the time? How did...

This site from ScienceWorld describes the Scottish geologist Charles Lyell who supported the ideas of the uniformitarian principle and aligned himself with James Hutton's ideas. He also supported and refuted some of the ideas of Charles...

The White Man's Burden was another name for Imperialism. It was an ethnocentric idea that emerged from Darwin's Theory of Evolution to explain why white people were living in what they believed were more advanced civilizations than...

Explore paleoanthropology by going on a virtual "dig" to answer questions about famous fossil finds. Explain how alternate hominid family trees result from different interpretations of the same fossil evidence.

The Discovery Channel provides numerous lesson plans dealing with plants. Content is organized by grade level, but all lesson plans include suggestions for adaptations for older or younger audiences.

A biography of Thomas Henry Huxley, a contemporary of Charles Darwin, and a strong supporter of his theory of evolution.

The National Humanities Center presents collections of primary resources compatible with the Common Core State Standards - historical documents, literary texts, and works of art - thematically organized with notes and discussion...

[Free Registration/Login may be required to access all resource tools.] Why connect biology and geography? This module will provide resources for students to understand continental drift theory, human population and its distribution, and...

The 19th century saw a rapid technological change, together with paradigm shifts in scientific understanding. These articles research how authors responded to the new possibilities afforded by technology and science.

Find the index to a larger site about the Scopes trial which has photographs pertinent to the trial, cartoons and diagrams, and essays and excerpts from magazines about the trial. Great primary source material.

NPR presents a timeline on the events surrounding the Scopes Monkey Trial. Includes photos, recollections and information on the people involved in the trial.

Colorful, engagingly written information about astronomy and biology for Portuguese-speaking English language learners. Both subjects are broken down into a broad array of related subtopics. The biology section is particularly helpful...

A very good look at the Scopes Monkey Trial that pit prosecuting attorney, William Jennings Bryan against defense attorney, Clarence Darrow. Read about the issues, the media circus at the trial, and eventual outcome. Find the basis of...

This page has a Java simulation that demonstrates allele frequency and natural selection. Choose various numbers for this simulation and run the experiment.

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,...

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

{1825-1895) English biologist known as "Darwin's Bulldog" for his advocacy of Charles Darwin's theory of evolution.

British biologist who defended Darwin's theory of evolution. He is known as "Darwin's Bulldog." Huxley also coined the term "anosticism" describing his religious beliefs.

This courthouse was the scene of the Scopes Trial of July 1925, in which teacher John T. Scopes faced charges for including Charles Darwin's theory of evolution in his public school lessons. The trial became a clash of titans between the...

This survey of early dinosaur discoveries in North America discusses the first dinosaur specimens and the scientific debate that they inspired.