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Image of the Day

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image: Image of the Day: Gastric Rainbow

Image of the Day: Gastric Rainbow

By | July 30, 2013

This section through a mouse stomach shows where food is digested (black area near the top) by enzymes and acids made by the green and magenta cells, respectively, while the red cells lining the stomach's surface secrete mucus to protect the stomach from self-digestion.

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image: Image of the Day: Bug's Life

Image of the Day: Bug's Life

By | July 29, 2013

A new study on the gut microbiome of closely related wasp species in genus Nasonia provides evidence for the controversial hologenomic theory of evolution, which states that the genomes of both a host and its microbial symbiotes contribute to host speciation.

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image: Image of the Day: Caught in the Net

Image of the Day: Caught in the Net

By | July 26, 2013

This 2-day-old zebrafish heart tube shows muscle cells (green) and other components of the muscle (red and blue).

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image: Image of the Day: My Schwannoma

Image of the Day: My Schwannoma

By | July 25, 2013

Differential interference contrast microscopy captured these images of schwannomas, benign tumors of Schwann cells, which insulate nerves in the periphery of the body with fatty myelin sheaths.

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image: Image of the Day: Orange Pore Fungus

Image of the Day: Orange Pore Fungus

By | July 24, 2013

The orange pore fungus (Favolaschia calocera), native to Madagascar, grows on decaying plant matter in forests.

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image: Image of the Day: Flashy Fluorescent Fish

Image of the Day: Flashy Fluorescent Fish

By | July 23, 2013

Neurons in a larval zebrafish are distinguished using the Brainbow method, in which different ratios of a handful of colored fluorescent proteins are expressed randomly to give each neuron a unique hue.

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image: Image of the Day: Made-to-order Heart

Image of the Day: Made-to-order Heart

By | July 22, 2013

Inside a bioreactor, the cells of a human heart are washed away by detergents, leaving a protein scaffolding that can then be injected with heart-muscle precursor cells.

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image: Image of the Day: Butterfly Antenna

Image of the Day: Butterfly Antenna

By | July 19, 2013

Butterflies use their club-shaped antenna for balance as well as sensing odors, wind currents, and possibly the position of the sun.

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image: Image of the Day: Growing Retinal Neurons

Image of the Day: Growing Retinal Neurons

By | July 18, 2013

Photomicrograph of axons sprouting out of mouse embryo retinal neurons cultured in a Petri dish.

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image: Image of the Day: Resplendent Rotifer

Image of the Day: Resplendent Rotifer

By | July 17, 2013

The common rotifer (Philodina roseola), captured here by a polarized light microscope, is a freshwater zooplankton feasted upon by copepods, comb jellies, and fish.

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