Image of the Day

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image: Image of the Day: Colorful Crystals

Image of the Day: Colorful Crystals

By | April 27, 2017

Thecla opisena butterfly wings get their unique luster from the crystalline structures in their scales (bottom right).

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image: Image of the Day: Return of the Giant Tortoise

Image of the Day: Return of the Giant Tortoise

By | February 20, 2017

Thanks to conservation efforts, the critically endangered Pinzon Island tortoise (C. duncanesis) reproduced in 2015 for the first time in 100 years, and many of the offspring are now adults.

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image: Image of the Day: Cerebral Infiltration

Image of the Day: Cerebral Infiltration

By | February 11, 2013

An illustration depicting the damaging effects of a tumor (red) on structural connections within the brain

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image: Image of the Day

Image of the Day

By | October 29, 2012

The Psyche (Leptosia nina) butterfly, shown here as a mating pair, is a weak flyer, making erratic movements as it bobs across the grass and rarely leaving ground level.

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image: Image of the Day

Image of the Day

By | October 24, 2012

A scanning electron micrograph of the prickly hairs of stinging nettle

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image: Image of the Day

Image of the Day

By | October 23, 2012

A fluorescence micrograph catches a neuron regenerating in culture.

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