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.

[Free Registration/Login may be required to access all resource tools.] This study guide looks at Darwin's theory of evolution and natural selection. It also looks at some of the evidence supporting the theory of evolution (comparative...

Explore the evidence for the theory of evolution.

This site from BioWeb Evolution was originally created as a ThinkQuest entry, and it has some good basic information about evolution. This page is on fossils and geologic time.

A very good article on the fossil evidence and the prominent theory on the evolution of birds. Addresses both sides and presents information. Predominently agrees with the pro-dinosaurian point of view.

An online summary of the evolution of flowering plants at an advanced level. The text is supported by good illustrations and is followed by a quiz. This is a good review for exams.

Strengthen understanding of how different types of scientific evidence support the theory of evolution, including direct observation, fossils, DNA, biogeography, and comparative anatomy and embryology.

By examining fossils, scientists have collected evidence that supports the theory that species changed over time. As you read this article, study this evidence and critically evaluate whether it indicates that species may have arisen by...

This comprehensive essay provides a brief history of the Australopithecines an in depth discussion of the discovery of the early fossils, and a look at the ancestors of the Australopithecines.

Biography of Richard Leakey that deals with his paleontological work and his efforts to preserve African wildlife.

The PBS site covers the Leakey family and their discoveries in Olduvai Gorge in Tanzania. This information was part of a PBS exploration of human evolution.

Biologist Mike Novacek discusses his discovery of mammal fossils in the Gobi Desert and tells us what we can learn from them. From an episode about extinction broadcast on the PBS series "Evolution."

This brief explanation of punctuated equilibrium includes paragraphs on the history of the theory and the controversy surrounding it.

General information on the evolution of the myriapodes (centipedes and millipedes) and a look at the fossil record.

Describes the evolution of dead plant matter into coal.

Standford University provides interesting biographical and professional information on Stephen Jay Gould and his many contributions to scientific thought, including his efforts to help people see science "As something that is important...

Describes what segmented worms are and gives a brief description of thier evolution through the use of their fossil record.

Starts with a definition of Punctuated Equilibrium, followed by an explanation of this "Observation," and how it fits with other evolutionary theory.

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

Talk Origins gives a broad description of the types of Hominid species, and then gives a description of each species. Includes the specific characteristics of each, and explains the differences between the species.

An article which describes a fossil site in eastern China where evidence has been found that Home erectus may have been active in eastern China some 400,000 years earlier than scientists believed. The authors also summarize the debate...

The Canadian Museum of Nature provides characteristics and ancient history of global coral reefs.

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

One of the most famous fossil organisms, trilobites were once a complex group. Learn to tell them apart in this illustrated article that tells how they lived, their body structure, there place in evolution, and the like.