Image of the Day

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image: Image of the Day: Protective Protist

Image of the Day: Protective Protist

By | October 7, 2016

This newly discovered protist, Tritrichomonas musculis, lives in the mouse gut and helps protect its host from infection.

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image: Image of the Day: Triassic Teeth

Image of the Day: Triassic Teeth

By | October 6, 2016

Brazilian researchers recently uncovered fossils of an ancient mammal-like reptile from the Late Triassic. This artist's rendering shows the critter's protruding upper teeth.

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image: Image of the Day: On the Inside

Image of the Day: On the Inside

By | October 5, 2016

A new technique for cracking open insect exoskeletons without damaging tissue underneath allowed University of Iowa researchers to capture this image of sensory cells in a fruit fly antenna.

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image: Image of the Day: Gut Feeling

Image of the Day: Gut Feeling

By | October 4, 2016

These fruit fly (Drosophila) guts are genetically altered to fluoresce green when an immune response is triggered, visualizing the response to infection.

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image: Image of the Day: Balancing Act

Image of the Day: Balancing Act

By | October 3, 2016

Electron micrograph of a piece of activated carbon—used for waste treatment—with a spherical microparticle balanced perfectly on a ledge.

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image: Image of the Day: Hatched This Way

Image of the Day: Hatched This Way

By | September 30, 2016

Here's a glimpse at how the body of an embryonic African house snake (Boaedon fuliginosus) develops within an egg.

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image: Image of the Day: Cottontail Cool

Image of the Day: Cottontail Cool

By | September 29, 2016

The ears of a desert cottontail (Sylvilagus audubonii) help the mammal keep cool under the baking sun with a network of blood vessels that acts like a car radiator.

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image: Image of the Day: Staying Warm

Image of the Day: Staying Warm

By | September 28, 2016

Japanese macaques (Macaca fuscata) huddle close in a snowstorm.

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image: Image of the Day: Carry Me Home

Image of the Day: Carry Me Home

By | September 27, 2016

Forager Sahara Desert ants (Cataglyphis bicolor) are known to carry worker ants that are unfamiliar with the landscape from one nest site to another.

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image: Image of the Day: Crowned Caiman

Image of the Day: Crowned Caiman

By | September 26, 2016

Butterflies in the Amazon congregate on the head of a caiman to collect salt, a scarce mineral.

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