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Why do I hear the bass from my neighbor's stereo, but not the treble?
Why do some songs get stuck in your head?
Opera singers carry notes that seem to last forever. How do they do it?
Sit down for compost tea with a visionary cultivator.
Explore the deadly beautiful world of carnivorous plants.
Find out why biodiversity benefits plants and people alike.
See why these beautiful flowers have attracted generations of admirers.
Take a peek at the colorful world of plant sex.
Discover the uncommon stories behind the most common fruits and vegetables.
The fact and fiction behind some bizarre gardening remedies.
Meet the competitors and their humongous pumpkins at Half Moon Bay's Great Pumpkin Festival.
Tour a hydroponic greenhouse in frozen Antarctica.
Use this desktop widget to view current science news feeds on your computer.
Bubbles are round when they float free through air. But what happens when you pack bubbles together?
Capture the sound of your beautiful voice by singing into a wok.
A drop of water makes a fine magnifying lens.
Explore the elements of a scientific paper.
Explore the process of reconstructing a skull as a 3-D model.
Zoom into a fossil chimp tooth.
Teeth are the most common fossils found. What can they tell us?
Explore the process of extracting DNA from Neanderthal bones.
Explore a timeline of homind fossils.
Search a geological map of Ethiopia for fossils.
The fruit flies in this exhibit show just a few of the mutations that occur in natural fruit fly populations.
Can you tell the difference between human and nonhuman embryos?
This ancient temple holds a secret...can you reveal the mystery?
Leonardo's famous painting is used in an interesting perceptual experiment.
Sometimes things are not as they appear.
Your eye movements make this design seem to shimmer.
Four exhibits small enough to fit on postcards.
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San Francisco, CA 94111
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