Image of the Day

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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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image: Image of the Day: Gorgeous Gynandromorph

Image of the Day: Gorgeous Gynandromorph

By | January 8, 2015

A brush-footed butterfly (Lexias pardalis) with male left wings and female right wings—a rare condition known as bilateral gynandromorphy—will be on display at the Drexel University Academy of Natural Sciences starting January 17.

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image: Image of the Day: Spider Eyes

Image of the Day: Spider Eyes

By | January 7, 2015

Of their eight eyes, jumping spiders have one large pair front and center, shown here at 20x magnification.

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image: Image of the Day: Sparrow Signals

Image of the Day: Sparrow Signals

By | January 6, 2015

Male swamp sparrows (Melospiza georgiana) flap one wing to assert dominance over conspecifics in their territories in response to specific syllables in whistling calls of nearby males.

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image: Image of the Day: Cortical Recovery

Image of the Day: Cortical Recovery

By | January 5, 2015

A genetic change allows induced pluripotent stem cells from patients with frontotemporal dementia to differentiate into cortical neurons (green).

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