From the Howard Hughes Medical Institute's extraordinary BioInteractive series comes EarthViewer: an interactive resource that allows science students to explore how the earth has changed from the Hadean Eon (approximately 4 - 4.6 billion years ago) through the present. EarthViewer may be best described as an interactive map and timeline. As users scroll across eons and eras, they can view...

As a companion to the seven-part, eight-hour television series, PBS's Website offers an in-depth look at the history and complexities of evolution. From Darwin's Origin of Species to the role of religion, this site explores the topic in vivid detail. All interested will discover excellent information, but K-12 teachers will find the Teachers & Students section especially valuable. Here, resources...

This interactive game from PBS's NOVA Online allows students to observe a population of virtual creatures as they evolve under changing conditions. Background color, controlled by the student, represents environmental conditions, while the color of the organism indicates certain adaptations and mutations. Students are able to see how changes in environmental conditions support some colors of...