Image of the Day

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image: Image of the Day: A Heart is Born

Image of the Day: A Heart is Born

By | August 28, 2017

To track distinct populations of developing cardiovascular cells, scientists used pulses of electricity to introduce fluorescently labeled DNA into chick embryos.

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image: Image of the Day: Stretchy Chicken Skin

Image of the Day: Stretchy Chicken Skin

By | August 25, 2017

In a developing chicken embryo, skin cells pull on each other, forming multicellular mounds that eventually turn into properly-spaced feathers.

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image: Image of the Day: No Table Manners

Image of the Day: No Table Manners

By | August 24, 2017

Ancient bones of the newly described toothless, stout-nosed dolphin Inermorostrum xenops suggest that it slurped its food.

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image: Image of the Day: Brand New Pyjamas

Image of the Day: Brand New Pyjamas

By | August 23, 2017

As it matures, this chromatophore-clad pyjama squid (Sepioloidea lineolata) hatchling will learn to use the color-changing cells that adorn its body to alter its appearance.

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image: Image of the Day: Flying Blood Bag

Image of the Day: Flying Blood Bag

By | August 22, 2017

A novel contrast agent capable of staining the finest blood vessels reveals an elaborate, entwined network in this pigeon’s CT scan. 

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image: Image of the Day: Can’t Touch This

Image of the Day: Can’t Touch This

By | August 21, 2017

Scientists engineer a new polymer that prevents macrofouling mussels from sticking to underwater surfaces.

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image: Image of the Day: Sperm Protectors

Image of the Day: Sperm Protectors

By | August 18, 2017

Among their many functions, macrophages in mouse testes guard sperm against attacks by other immune cells. 

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image: Image of the Day: Skull Scan

Image of the Day: Skull Scan

By | August 17, 2017

High-resolution neutron imaging and CT scans of the tyrannosaur Bistahieversor sealeyi’s 74-million-year-old skull shed light on its evolution.

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image: Image of the Day: Dial M for Murder

Image of the Day: Dial M for Murder

By | August 16, 2017

M proteins from Streptococcus bacteria selectively kill mouse macrophages and human macrophage-like cells by prompting cell death.

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image: Image of the Day: Fountain of Youth

Image of the Day: Fountain of Youth

By | August 15, 2017

Neural plasticity wanes with age, but increasing the protein Arc—abundant earlier in life—in the visual cortex of mice can fend off this decline.

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