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Image of the Day

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image: Image of the Day: Inside an Ammonite

Image of the Day: Inside an Ammonite

By | April 9, 2015

CT scans of hollow fossilized ammonites revealed that the invertebrates could have been buoyant enough to swim like their distant modern cousin, the nautilus.

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image: Image of the Day: Galápagos Gobbler

Image of the Day: Galápagos Gobbler

By | April 8, 2015

Galápagos giant tortoises (Chelonoidis nigra porteri) on the island of Santa Cruz spend more time eating invasive plant species than native ones, a study finds.

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image: Image of the Day: Colorful Self-Destruction

Image of the Day: Colorful Self-Destruction

By | April 7, 2015

Beta catenin (colored bar) binds to centrosomes (bright dots of contrasting color) in asymmetrically dividing C. elegans cells, triggering the signaling protein's degradation and low levels in the daughter cells.

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image: Image of the Day: Social “Pinocchio”

Image of the Day: Social “Pinocchio”

By | April 6, 2015

The Ecuadorian horned anole lizard (Anolis proboscis) is known as the “Pinocchio lizard” for the males’ long noses, which are used in social displays but not for fighting.

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image: Image of the Day: Sickening <em>Shigella</em>

Image of the Day: Sickening Shigella

By | April 3, 2015

Multidrug-resistant Shigella sonnei sickened nearly 250 people in the United States between May 2014 and February 2015, according to a US Centers for Disease Control and Prevention report.

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image: Image of the Day: Seashell Secrets

Image of the Day: Seashell Secrets

By | April 2, 2015

UV light reveals the coloration patterns of 5 million- to 6 million-year-old cone snail shell fossils from the Dominican Republic.

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image: Image of the Day: Mesozoic Mom

Image of the Day: Mesozoic Mom

By | April 1, 2015

A female ensign scale insect (Wathondara kotejai), trapped in amber more than 100 million years ago with her hatchlings and 60 eggs in a wax-coated sac, provides the oldest evidence of insect brood care.

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image: Image of the Day: Territorial Panda

Image of the Day: Territorial Panda

By | March 31, 2015

Pandas rub their scent glands against trees to establish territories and attract potential mates.

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image: Image of the Day: Intersex Fish

Image of the Day: Intersex Fish

By | March 30, 2015

Researchers found a developing egg in the testes of a male deep sea trout off the coast of France, an intersex condition possibly linked to pollution levels in the surrounding waters.

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image: Image of the Day: Shifting Skin

Image of the Day: Shifting Skin

By | March 27, 2015

A newly described species of frog (Pristimantus mutabilis) found in the Ecuadorian Andes can change its skin texture from spiky to smooth.

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