A dynamic archive of information on digital morphology and high-resolution X-ray computed tomography of biological specimens.

Describes the evolution of dead plant matter into coal.

A brief description of George Cuvier and his ideas concerning comparative anatomy, fossils, evolution of life, and the idea of extinction.

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....

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.

Students examine the topic of evolution and extinction. Includes definitions, examples, and pictures on six extinctions events.

Delve into the Tertiary Period portion of the Evolving Planet exhibit, and trace the climate and continental shift during this time. Includes an overview of the period, a collection of images, and a look at the Tertiary Period's...

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.

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...

Explore life's evolutionary history on the planet through molecular illustrations and animations. Pictorial evidence is based on origin of life research and theory.

This site from Enchanted Learning can answer your questions about birds. What type of scientist studies birds? What is the fastest running bird? Which bird lays the largest birds' eggs? Come and find out the answer to these questions and...

This timeline is a good resource if you are looking for brief descriptions of the geologic periods. Descriptions include pictures of common organisms for each period and the range of time covered by each period.

[Free Registration/Login may be required to access all resource tools.] Students will explore ways to study the past to learn about the history of life. Understand how fossils, DNA analysis, and molecular clock help researchers study...

Believe it or not, scientists were recently able to recover tissue and partial sequence information for protein molecules from a 68-million-year-old Tyrannosaurus rex fossil. In this genomics science fair project, you will use the T....

Dinosaur Train sparks children's interest in life science and natural history. As they explore a variety of animals, children develop the inquiry skills and knowledge needed to help them think, talk and act like paleontologists. Choose...

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.

A collection of links to activities and lessons that could be used for Earth science concepts including the foil record, creating a timeline of Earth's history, plate tectonics, dinosaurs, and the progression of life on Earth.

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.

Riversleigh and Naracoorte, situated in the north and south respectively of eastern Australia, are among the world’s 10 greatest fossil sites. They are a superb illustration of the key stages of evolution of Australia’s unique fauna.

Offers an easy to understand explanation of the earth's layers and the fossils we find in each layer. It explains how these are interpreted by scientists to represent the evolution of animal and plant life through the geological eras.

This in-depth article illustrates the concept of geologic time, and helps the learner understand why fossils are rare.

An overview of the Great Rift Valley complete with a discussion of the plate tectonics, volcanoes, and climate of the valley. Of particular interest is the section on Apekind to Mankind: Human Evolution in the Great Rift Valley. Reasons...