Explore the building blocks of life. Rotate 3D protein structures, unravel DNA helices, simulate gene expression, and discover the human body — all in your browser.
Click any molecule to load its 3D structure from the Protein Data Bank. Drag to rotate, scroll to zoom, and toggle rendering styles.
Interactive PhET simulations to explore gene expression, natural selection, and the fundamental processes of life.
Watch transcription and translation in action. See how DNA gets transcribed into mRNA and translated into proteins. Control gene regulation and observe polymerase at work.
Explore Darwin's theory hands-on. Add mutations for fur color, teeth, and tail length in a bunny population. Introduce wolves and see which traits survive across generations.
The human body is a marvel of biological engineering. Explore its major systems — 3D interactive models coming soon.
From greenhouse gases shaping our climate to intricate food webs connecting species — explore how ecosystems sustain life and how evolution drives biodiversity.
Understand how greenhouse gases trap heat in our atmosphere. Adjust CO2, methane, and water vapor levels to see their effect on global temperature. Compare different time periods from the Ice Age to today.
Energy flows from producers (plants) through primary consumers (herbivores), secondary consumers (predators), and decomposers. Only ~10% of energy transfers between each level.
Earth hosts an estimated 8.7 million species. Biodiversity drives ecosystem resilience. Loss of keystone species can trigger cascading effects through entire food webs.
Did you know? A single teaspoon of healthy soil contains more microorganisms than there are people on Earth. These soil microbes drive nutrient cycling, decomposition, and carbon storage critical for all terrestrial ecosystems.