A companion to a PBS program, this Jeopardy-style game test learners as they identify the characteristics of mollusks.

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.

This site describes 14 of Australia's museums. No links are provided, only information and addresses.

Read the full text of "Origin of Species", considered to be the foundation of evolutionary biology, by Charles Darwin on this site.

You are a bird hunting moths (both dark and light) that live on trees. As you capture the moths most easily visible against the tree surface, the moth populations change, illustrating the effects of natural selection. (Free usage is...

This lesson will explain how scientists can use homologous structures to identify relationships among different organisms.

This lesson will introduce the 7 characteristics of all living things. It is 4 of 4 in the series titled "7 Characteristics of Life."

The Catholic Encyclopedia entry for Lazzaro Spallanzani. Please note that The Catholic Encyclopedia is a historic reference source and should be viewed in the context of resource material dated around 1910.

This theory from the University of Chicago of dinosaur extinction revolves around the concept of plate tectonics, the movement of the continents over a sort of liquid around the planet.

This lesson will explain how fossils can be used to determine evolutionary relationships. It is 6 of 6 in the series titled "Fossils."

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

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

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.

This site gives a brief overview of the museum. Address and phone number are given with links to a little more information.

This site provides a fun way of exploring the Galapagos Islands through pictures, sound, videos, games, learning exercises, and more.

This site can be viewed in either English or Italian. Many links can take the viewer to more information on the museum.

The concepts of microevolution and macroevolution are explained and a two-column table that compares them is presented.

Interesting facts and information on the Eugenics Movement in America.

Gives the history of flatworms and how they evolved. Gives the different types of flatworms, including the tapeworm.

What do centipedes and crabs have in common? What's so special about a backbone? Check this site out from The Franklin Institute if you are interested in biology and classification.

An exhibit that explains why the embryos of vertebrates look so much alike.

A general description of the evolution of amphibians and information about the decline in population of amphibians over the years.

The American Geological Institute has done a great job defining and explaining evolution in this online booklet. Darwin, fossils, natural selection, and change over time are some of the concepts that are covered. Make sure to see the...

The American Geological Institute has done a great job defining and explaining evolution in this online booklet. Darwin, fossils, natural selection, and change over time are some of the concepts that are covered. Make sure to see the...