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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 how different animals — elephants, birds, and bats — have evolved distinct ways of using sound to communicate.

Several questions are embedded within the short film The Making of the Fittest: Natural Selection and Adaptation, which uses the rock pocket mouse as a living example of natural selection.

This interactive module explores the circulatory systems of major vertebrate groups to gain insights into their evolution.

This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer.

This tutorial describes the symbiosis between the Hawaiian bobtail squid and bioluminescent bacteria.

This tutorial describes how animals differ in their abilities to heal wounds and regenerate lost body parts or damaged tissues.

This tutorial explores how stem cells can be used to treat a wide range of diseases.

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

This interactive, modular lab explores techniques for identifying and recording the electrical activities of neurons, using the leech as a model organism.