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Biology

A Cell in Motion
A Cell in Motion

Turn the crank and watch a moving cell model. Different parts of the cell extend and retract, and the cell’s internal bulk sometimes shifts from one area to another.

Where:   Gallery 4: Living Systems

A Sip of Conflict
A Sip of Conflict

Would you, could you, will you drink from a water fountain fashioned from an actual—but unused—toilet? Porcelain is just porcelain . . . right? 

Where:   This exhibit is not currently on view.

Adapting to Color
Adapting to Color

Change your perception of color by flooding your eyes with colored light.

Where:   Bechtel Gallery 3: Seeing & Reflections

Are Your Cells You?
Are Your Cells You?

Examine living HeLa cells—the first “immortal” cell line—and explore ethical and philosophical questions about these historic and controversial cells.

Where:   Gallery 4: Living Systems

Bacteriopolis
Bacteriopolis

Thousands of distinct species live and breathe (or not) in this colorful bacterial terrarium. Look for green cyanobacteria, orange iron oxidizers, and gray cellulose eaters. What you see today will be gone tomorrow in this living artwork in a perpetual state of change.​

Where:   Gallery 4: Living Systems

Benham's Disk
Benham's Disk

When the disk is spun, the colors you see are illusions. This effect was popularized in 1894 by toymaker C. E. Benham, who called his spinning disk an “artificial spectrum top."

Where:   Crossroads: Getting Started

Big Wood: 300 Years of Photosynthesis
Big Wood: 300 Years of Photosynthesis

Developed by artist Michael Brown in collaboration with reclaimed wood specialist Evan Shively, a several-hundred-year-old Douglas fir was split down the center to reveal its rings, immersing visitors in a fascinating study of dendrochronology. 

Where:   This exhibit is not currently on view.

Bird in a Cage
Bird in a Cage

Stare at a bird’s eye for 30 seconds, then look into the empty cage. You’ll see a ghostly bird—of a very different color—inside the cage

Where:   Bechtel Gallery 3: Seeing & Reflections

Blood Cells in Your Eye
Blood Cells in Your Eye

Gaze into the eyepiece at the blue light, looking for bright specks moving in short bursts against the background, and feeling your pulse as you watch them.

Where:   Gallery 4: Living Systems

Bronze Hand
Bronze Hand

The combination of past experience and the sight and feel of being touched seems to change your brain's definition of your body's boundaries. You may even feel as if the fake hand is part of you.

Where:   Osher Gallery 1: Human Phenomenon

Can You Spot the Human?
Can You Spot the Human?

An array of embryo photos—can you guess which one is human? Then try it with photos of different eggs. And sperm. 

Where:   Gallery 4: Living Systems

Cheshire Cat
Cheshire Cat

Make your partner's face disappear, leaving only a smile.

Where:   This exhibit is not currently on view.

Color Conflicts
Color Conflicts

When can reading get in the way of speaking?

Where:   Osher Gallery 1: Human Phenomenon

Disappearing Act
Disappearing Act

An animal that blends in with its environment is much easier to see when it's moving than when it's still.

Where:   Crossroads: Getting Started

Energy from Death
Energy from Death

A decaying carcass makes a perfect meal for an assortment of scavengers, including the dermestid beetles you can see in this exhibit. As they feast on these carcasses, the dermestid beetles and their larvae get their energy and nutrients from the dried flesh, skin, and other tissues.

Where:   Gallery 4: Living Systems

Floater Theater
Floater Theater

Floater Theater is an intimate theatrical environment that whimsically prompts participants to explore the fascinating, commonly experienced phenomenon of eye floaters.

Where:   This exhibit is not currently on view.

Give Heart Cells a Beat
Give Heart Cells a Beat

Give Heart Cells a Beat invites visitors to control human heart cells, using their heart rate to drive the beating of the cells. 

Where:   Gallery 4: Living Systems

Glass Settling Plate
Glass Settling Plate

Almost any hard object submerged in San Francisco Bay—from pier pilings to the sides of sailboats—quickly becomes a habitat for an ever-changing community of living things. Here you can use a joystick-driven microscope to take a tour of the wonderland of living creatures that have settled on a glass plate that has spent some time submerged in the Bay.

Where:   Gallery 4: Living Systems

Hoop Nightmares
Hoop Nightmares

Your brain adapts quickly to a warped view of the world, turning baskets into air balls.

Where:   This exhibit is not currently on view.

Is It Genetic?
Is It Genetic?

Answer questions about certain of your physical features, such as what color your eyes are, and how attached the bottoms of your ears are to your head. Then find out what roles genes and your environment play in these traits. 

Where:   Gallery 4: Living Systems

Leaves that Sprout Plants
Leaves that Sprout Plants

Looking closely at the leaves of kalanchoe plants, you can see tiny sprouts growing from the leaf edges. Each of these plantlets can grow into a clone—a genetic copy of the parent plant.

Where:   Gallery 4: Living Systems

Life in a Drop of Water
Life in a Drop of Water

Light projected through a drop of salt water reveals an abundance of life.

Where:   Gallery 4: Living Systems

Life on the Rocks
Life on the Rocks

All these organisms are adapted to life in California's rocky tidal zone.

Where:   Gallery 4: Living Systems

Live Chicken Embryos
Live Chicken Embryos

It takes just 21 days for an egg to go from just laid to newly hatched chick, and a lot goes on in just the first week. Look closely and you’ll find blood vessels, a backbone, wing buds, eyes, a brain, and—throbbing prominently by day 5 or so—a beating heart.

Where:   Gallery 4: Living Systems

Living Systems Explainer Station
Living Systems Explainer Station

Explainers do biology and botany demonstrations.

Where:   Gallery 4: Living Systems

Look Inside a Developing Fish
Look Inside a Developing Fish

Here you can see inside living zebrafish embryos, see their blood circulate, and compare your own pulse to theirs.

Where:   Gallery 4: Living Systems

Magic Wand
Magic Wand

Wave the wand quickly and see an image appear.

Where:   Bechtel Gallery 3: Seeing & Reflections

Mapping Migrations
Mapping Migrations

This interactive data visualization reveals the migration tracks of sharks, whales, sea turtles, tuna, and other marine creatures, and lets visitors explore differences in timing, geographic location, and male versus female migration routes.

Where:   Gallery 4: Living Systems

Microscope Imaging Station
Microscope Imaging Station

Research-grade microscopes reveal interior worlds of living, changing cells.

Where:   Gallery 4: Living Systems

Mirrorly a Window
Mirrorly a Window

Confusing sensory information can be profoundly disturbing.

Where:   Osher Gallery 1: Human Phenomenon

Mood Lighting
Mood Lighting

Sit down in a cozy chair and bathe your brain in a bubble of color of your choosing, dialing up anything from amber to violet. As you spend a few moments with each color, you may feel a shift in your own emotional hue.

Where:   This exhibit is not currently on view.

Native Oyster Colony
Native Oyster Colony

Get a closer look at live, Olympia oysters, native to San Francisco.

Where:   Fisher Bay Observatory Gallery 6: Observing Landscapes

Pier Piling Pivot
Pier Piling Pivot

This exhibit uses a geared motor to swing a specially designed piling out of the water so that visitors can examine it in detail. An accompanying legend identifies the intertidal zones on the piling and the species of plant and animal life occupying this unique shoreline environment.

Where:   Gallery 5: Outdoor Exhibits

Plankton Populations
Plankton Populations

Different types of phytoplankton multiply or die off in response to changing ocean conditions.

Where:   Gallery 4: Living Systems

Plankton Rainbow
Plankton Rainbow

Plankton can distinguish between different colors of light.

Where:   Gallery 4: Living Systems

Probably Chelsea
Probably Chelsea

Twenty different sculptural portraits, all based on the same person's DNA information. 

Where:   Gallery 4: Living Systems

Seeing and Listening Explainer Station
Seeing and Listening Explainer Station

Explainers do light and sound demonstrations.

Where:   Bechtel Gallery 3: Seeing & Reflections

Sensitive Plants
Sensitive Plants

Gently touch these plants and see how they respond.

Where:   Gallery 4: Living Systems

Sound Bite
Sound Bite

Bite down on a straw and listen to music that only you can hear, as sound travels to your inner ear via your teeth and bones.

Where:   This exhibit is not currently on view.

They're Identical . . . Or Are They?
They're Identical . . . Or Are They?

Carefully comparing identical twins can reveal how our surroundings help to shape who we become. 

Where:   Gallery 4: Living Systems

Time to Think
Time to Think

At this exhibit, you can test your reaction time in three different scenarios—each requiring an increasing amount of thought. In the process, you can actually measure the time it takes your brain to accomplish the extra work of making a (fast) decision.

Where:   Crossroads: Getting Started

Triple-Aye Lightstick
Triple-Aye Lightstick

A sweeping glance creates images that appear and disappear in the blink of an eye. This phenomenon, called persistence of vision, is also at work in videos and movie projections, which also flash on and off rapidly.

Where:   This exhibit is not currently on view.

Velvet Hands
Velvet Hands

A surprising—and as yet unexplained—tactile illusion can occur when you slowly rub your palms across this mesh. You may feel a strange, slippery sensation, as if there’s a thin film of velvet between your hands.

Where:   Osher Gallery 1: Human Phenomenon

Weird Wings
Weird Wings

See how the combination of DNA mutations and temperature can change the shape of a fly's wings.

Where:   Gallery 4: Living Systems

What Lives Here?
What Lives Here?

See what living things have attached themselves to our sampling plate.

Where:   Gallery 5: Outdoor Exhibits

Within 15 Minutes
Within 15 Minutes

Alma Haser photographed sets of identical twins and made them into identical jigsaw puzzles. She then swapped every other piece of their puzzles, completely mixing them half and half. Not always knowing where their eyes mouth, and lips would end up, the result is a pair of eerie, unrecognizable portraits. 

Where:   Gallery 4: Living Systems

Your Father’s Nose
Your Father’s Nose

How does it feel to mix your face with someone else’s?

Where:   This exhibit is not currently on view.

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