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This interactive module explores biomes, climate, biodiversity, and human impacts around the globe and at different times.

This interactive module explores the environmental factors and species involved in five major mass extinctions.

A number of questions are embedded within the short film The Making of the Fittest: The Birth and Death of Genes, which illustrates how gene duplications and mutations have led to remarkable physiological adaptations in Antarctic fish.

Several questions are embedded within the short film The Day the Mesozoic Died, which tells the story of the scientific quest to explain one of the greatest, long-standing scientific mysteries: the sudden disappearance of the dinosaurs at the end of the Cretaceous period.

This tutorial describes three examples of recent human adaptations: lactose tolerance, sickle cell disease, and bitter taste perception.

This interactive, modular lab explores the tools that doctors use to examine and diagnose patients with heart conditions.