Image of the Day

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image: Image of the Day: Virtual Framework

Image of the Day: Virtual Framework

By | February 22, 2016

A digital reconstruction of Sivatherium giganteum—an extinct Pleistocene relative of modern giraffes—from a collection of bones at the Natural History Museum, London.

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image: Image of the Day: Arctic Tour

Image of the Day: Arctic Tour

By | February 19, 2016

Beluga whales make their way through patches of sea ice around West Greenland.

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image: Image of the Day: Floral Fossil

Image of the Day: Floral Fossil

By | February 18, 2016

One of the first fossil specimens of an asterid—the plant group that includes potato, tomato, tobacco, and coffee—preserved in amber for more than 20 million years.

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image: Image of the Day: Multicolored Muscles

Image of the Day: Multicolored Muscles

By | February 17, 2016

Muscle fibers form when several cells fuse into myotubes containing many nuclei (stained in red and blue) and continuous cytoplasm (stained in green).

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image: Image of the Day: Sea Spawn

Image of the Day: Sea Spawn

By | February 16, 2016

A colony of Acropora millepora corals releases gametes into the sea during a mass spawning event at the Great Barrier Reef.

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image: Image of the Day: Bygone Battle

Image of the Day: Bygone Battle

By | February 15, 2016

Two fighting ants from different species have been trapped in this Burmese amber for 100 million years.

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image: Image of the Day: Red Squadron

Image of the Day: Red Squadron

By | February 12, 2016

A flock of scarlet ibis fly over the sand dunes of Ilha do Lençois, Brazil.

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image: Image of the Day: Microbial Maze

Image of the Day: Microbial Maze

By | February 11, 2016

Limestone stromatolites—rare microbial reefs—line the bed of Hamelin Pool in Shark Bay, Western Australia.

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image: Image of the Day: Sigh Cells

Image of the Day: Sigh Cells

By | February 10, 2016

Two hundred fluorescently labeled neurons on either side of a mouse’s brainstem are responsible for the sighing reflex.

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image: Image of the Day: Fringe Fluorescence

Image of the Day: Fringe Fluorescence

By | February 9, 2016

Closely related species of hydroids can be distinguished by their patterns of fluorescence (scale bar 0.5 mm).

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