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This is a searchable collection of scientific photos, illustrations, and videos. The images and videos in this gallery are licensed under Creative Commons Attribution Non-Commercial ShareAlike 3.0. This license lets you remix, tweak, and build upon this work non-commercially, as long as you credit and license your new creations under identical terms.
Sticky stem cells
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Like a group of barnacles hanging onto a rock, these human cells hang onto a matrix coated glass slide. Ankur Singh and Andrés García, Georgia Institute of Technology View MediaFruit fly embryo
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Cells in an early-stage fruit fly embryo, showing the DIAP1 protein (pink), an inhibitor of apoptosis. Hermann Steller, Rockefeller University View MediaKinesin moves cellular cargo
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A protein called kinesin (blue) is in charge of moving cargo around inside cells and helping them divide. Charles Sindelar, Yale University View MediaMitosis - telophase
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Telophase during mitosis: Nuclear membranes form around each of the two sets of chromosomes, the chromosomes begin to spread out, and the spindle begins to break down. Judith Stoffer View MediaTelomeres on outer edge of nucleus during cell division
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New research shows telomeres moving to the outer edge of the nucleus after cell division, suggesting these caps that protect chromosomes also may play a role in organizing DNA. Laure Crabbe, Jamie Kasuboski and James Fitzpatrick, Salk Institute for Biological Studies View MediaNuclear Lamina – Three Views
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Three views of the entire nuclear lamina of a HeLa cell produced by tilted light sheet 3D single-molecule super-resolution imaging using a platform termed TILT3D. Anna-Karin Gustavsson, Ph.D. View MediaCells use bubble-like structures called vesicles to transport cargo
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Cells use bubble-like structures called vesicles (yellow) to import, transport, and export cargo and in cellular communication. A single cell may be filled with thousands of moving vesicles.Tatyana Svitkina, University of Pennsylvania View Media
G switch
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The G switch allows our bodies to respond rapidly to hormones. See images 2537 and 2538 for labeled versions of this image. Crabtree + Company View MediaElectrode probe on mouse Huntington's muscle cell
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Using an electrode, researchers apply an electrical pulse onto a piece of muscle tissue affected by Huntington's disease. Grigor Varuzhanyan and Andrew A. Voss, California State Polytechnic University View MediaNeurons from human ES cells
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These neural precursor cells were derived from human embryonic stem cells. The neural cell bodies are stained red, and the nuclei are blue. Xianmin Zeng lab, Buck Institute for Age Research, via CIRM View MediaActin flow
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Speckle microscopy analysis of actin cytoskeleton force. This is an example of NIH-supported research on single-cell analysis. Gaudenz Danuser, Harvard Medical School View MediaSmooth muscle from mouse stem cells
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These smooth muscle cells were derived from mouse neural crest stem cells. Red indicates smooth muscle proteins, blue indicates nuclei. Deepak Srivastava, Gladstone Institutes, via CIRM View MediaSpreading Cells- 02
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Cells move forward with lamellipodia and filopodia supported by networks and bundles of actin filaments. Proper, controlled cell movement is a complex process. Rong Li and Praveen Suraneni, Stowers Institute for Medical Research View MediaNucleolus subcompartments spontaneously self-assemble 3
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What looks a little like distant planets with some mysterious surface features are actually assemblies of proteins normally found in the cell's nucleolus, a small but very important protein complex lo Nilesh Vaidya, Princeton University View MediaPigment cells in the fin of pearl danio
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Pigment cells are cells that give skin its color. David Parichy, University of Washington View MediaNeural development
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Using techniques that took 4 years to design, a team of developmental biologists showed that certain proteins can direct the subdivision of fruit fly and chicken nervous system tissue into the regions Mieko Mizutani and Ethan Bier, University of California, San Diego, and Henk Roelink, University of Washington View MediaCell in two stages of division
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This image shows a cell in two stages of division: prometaphase (top) and metaphase (bottom). Lilian Kabeche, Dartmouth View MediaHIV, the AIDS virus, infecting a human cell
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This human T cell (blue) is under attack by HIV (yellow), the virus that causes AIDS. Seth Pincus, Elizabeth Fischer, and Austin Athman, National Institute of Allergy and Infectious Diseases, National Institutes of Health View MediaBiofilm blocking fluid flow
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This time-lapse movie shows that bacterial communities called biofilms can create blockages that prevent fluid flow in devices such as stents and catheters over a period of about 56 hours. Bonnie Bassler, Princeton University View MediaMouse liver labeled with fluorescent probe
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A mouse liver glows after being tagged with specially designed infrared-fluorescent protein (IFP). Xiaokun Shu, University of California, San Diego View MediaSnowflake yeast 2
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Multicellular yeast called snowflake yeast that researchers created through many generations of directed evolution from unicellular yeast. William Ratcliff, Georgia Institute of Technology. View MediaLily mitosis 11
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A light microscope image of cells from the endosperm of an African globe lily (Scadoxus katherinae). This is one frame of a time-lapse sequence that shows cell division in action. Andrew S. Bajer, University of Oregon, Eugene View MediaPollen grains: male germ cells in plants and a cause of seasonal allergies
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Those of us who get sneezy and itchy-eyed every spring or fall may have pollen grains, like those shown here, to blame. Edna, Gil, and Amit Cukierman, Fox Chase Cancer Center, Philadelphia, Pa. View MediaPainted chromosomes
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Like a paint-by-numbers picture, painted probes tint individual human chromosomes by targeting specific DNA sequences. Beth A. Sullivan, Duke University View MediaMouse cerebellum close-up
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The cerebellum is the brain's locomotion control center. Every time you shoot a basketball, tie your shoe or chop an onion, your cerebellum fires into action. National Center for Microscopy and Imaging Research (NCMIR) View MediaSimulation of leg muscles moving
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When we walk, muscles and nerves interact in intricate ways. This simulation, which is based on data from a six-foot-tall man, shows these interactions. Chand John and Eran Guendelman, Stanford University View MediaCellular traffic
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Like tractor-trailers on a highway, small sacs called vesicles transport substances within cells. This image tracks the motion of vesicles in a living cell. Alexey Sharonov and Robin Hochstrasser, University of Pennsylvania View MediaActin filaments bundled around the dynamin helical polymer
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Multiple actin filaments (magenta) are organized around a dynamin helical polymer (rainbow colored) in this model derived from cryo-electron tomography. Elizabeth Chen, University of Texas Southwestern Medical Center. View MediaEndoplasmic reticulum abnormalities 2
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Human cells with the gene that codes for the protein FIT2 deleted. After an experimental intervention, they are expressing a nonfunctional version of FIT2, shown in green. Michel Becuwe, Harvard University. View MediaA panorama view of cells
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This photograph shows a panoramic view of HeLa cells, a cell line many researchers use to study a large variety of important research questions. Tom Deerinck, National Center for Microscopy and Imaging Research View MediaAn insect tracheal cell delivers air to muscles
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Insects like the fruit fly use an elaborate network of branching tubes called trachea (green) to transport oxygen throughout their bodies. Jayan Nair and Maria Leptin, European Molecular Biology Laboratory, Heidelberg, Germany View MediaHydra 02
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Hydra magnipapillata is an invertebrate animal used as a model organism to study developmental questions, for example the formation of the body axis. Hiroshi Shimizu, National Institute of Genetics in Mishima, Japan View MediaG switch (with labels and stages)
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The G switch allows our bodies to respond rapidly to hormones. G proteins act like relay batons to pass messages from circulating hormones into cells. Crabtree + Company View MediaDividing cell
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As this cell was undergoing cell division, it was imaged with two microscopy techniques: differential interference contrast (DIC) and confocal. The DIC view appears in blue and shows the entire cell. Dylan T. Burnette, Vanderbilt University School of Medicine. View MediaAnimal cell
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A typical animal cell, sliced open to reveal a cross-section of organelles. Judith Stoffer View MediaWeblike sheath covering developing egg chambers in a giant grasshopper
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The lubber grasshopper, found throughout the southern United States, is frequently used in biology classes to teach students about the respiratory system of insects. Kevin Edwards, Johny Shajahan, and Doug Whitman, Illinois State University. View MediaCryo-electron tomography of a Caulobacter bacterium
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3D image of Caulobacter bacterium with various components highlighted: cell membranes (red and blue), protein shell (green), protein factories known as ribosomes (yellow), and storage granules Peter Dahlberg, Stanford University. View MediaBone cancer cell
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This image shows an osteosarcoma cell with DNA in blue, energy factories (mitochondria) in yellow, and actin filaments—part of the cellular skeleton—in purple. Dylan Burnette and Jennifer Lippincott-Schwartz, NICHD View MediaMicrosporidia in roundworm 1
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Many disease-causing microbes manipulate their host’s metabolism and cells for their own ends. Keir Balla and Emily Troemel, University of California San Diego View MediaBacteria shapes
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A colorized scanning electron micrograph of bacteria. Scanning electron microscopes allow scientists to see the three-dimensional surface of their samples. Tina Weatherby Carvalho, University of Hawaii at Manoa View MediaPlasma-Derived Membrane Vesicles
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This fiery image doesn’t come from inside a bubbling volcano. Instead, it shows animal cells caught in the act of making bubbles, or blebbing. Jeanne Stachowiak, University of Texas at Austin View MediaArabidopsis Thaliana: Flowers Spring to Life
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This image capture shows how a single gene, STM, plays a starring role in plant development. Nathanaёl Prunet NIH Support: National Institute of General Medical Sciences View MediaG switch (with labels)
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The G switch allows our bodies to respond rapidly to hormones. G proteins act like relay batons to pass messages from circulating hormones into cells. Crabtree + Company View MediaNCMIR Kidney Glomeruli
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Stained glomeruli in the kidney. The kidney is an essential organ responsible for disposing wastes from the body and for maintaining healthy ion levels in the blood. Tom Deerinck, National Center for Microscopy and Imaging Research (NCMIR) View MediaBody toxins
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Body organs such as the liver and kidneys process chemicals and toxins. These "target" organs are susceptible to damage caused by these substances. Crabtree + Company View MediaRegenerating lizard tail
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The interior of a regenerating lizard tail 14 days after the original tail was amputated. Thomas Lozito, University of Southern California. View MediaEpithelial cells
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This image mostly shows normal cultured epithelial cells expressing green fluorescent protein targeted to the Golgi apparatus (yellow-green) and stained for actin (magenta) and DNA (cyan). Tom Deerinck, National Center for Microscopy and Imaging Research (NCMIR) View MediaMovie of in vitro assembly of a cell-signaling pathway
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T cells are white blood cells that are important in defending the body against bacteria, viruses and other pathogens. Xiaolei Su, HHMI Whitman Center of the Marine Biological Laboratory View Media