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Image of the Day

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image: Image of the Day: Whale Shark Shadow

Image of the Day: Whale Shark Shadow

By | January 22, 2015

Whale sharks, the largest fish in the ocean, often attract fellow travelers like tuna.

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image: Image of the Day: Fluorescent Femur

Image of the Day: Fluorescent Femur

By | January 21, 2015

A newly identified bone stem cell (red) shown inside a mouse femur appears to be important in skeletal development.

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image: Image of the Day: Bacterial Artists

Image of the Day: Bacterial Artists

By | January 20, 2015

Hoopoe birds (Upupa epops) coat their eggs in a bacterial secretion that protects the embryos from infection.

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image: Image of the Day: Bumblebee and Borage

Image of the Day: Bumblebee and Borage

By | January 19, 2015

Bright borage flowers attract bees and are thus often planted by gardeners to attract the insects to pollinate their plots.

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image: Image of the Day: Lab-Grown Muscle

Image of the Day: Lab-Grown Muscle

By | January 16, 2015

For the first time, researchers have grown human muscle tissue that can contract in response to electricity and pharmaceuticals.

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image: Image of the Day: Swift Snake

Image of the Day: Swift Snake

By | January 15, 2015

A long body and low-friction skin help the Mojave Desert-dwelling shovel-nosed snake maneuver quickly through the sand, X-ray videos reveal.

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image: Image of the Day: Resourceful Algae

Image of the Day: Resourceful Algae

By | January 14, 2015

Cyanobacteria (blue-green algae) can tap hidden pools of nitrogen and phosphorus in lakes, spurring their own growth and worsening the environment for other organisms.

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image: Image of the Day: Budding Bones

Image of the Day: Budding Bones

By | January 13, 2015

Osteoclasts (shown in red) forge a path for red blood cells (yellow) through the cartilage of a young mouse femur as it develops.

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image: Image of the Day: Varied Venom

Image of the Day: Varied Venom

By | January 12, 2015

The components of venom extracted from eastern diamondback rattlesnakes (pictured) differ depending on geographic location, while eastern coral snakes produce the same toxic cocktail across their range.

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image: Image of the Day: Ethylene Elongation

Image of the Day: Ethylene Elongation

By | January 9, 2015

The green algae Spirogyra pratensis grows when exposed to ethylene—a stress hormone previously thought to be unique to land plants, in which it induces flowering and fruit ripening.

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