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The finding confirms that a cluster of cells that directs the fate of other cells in the developing embryo is evolutionarily conserved across the animal kingdom.

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Victoria, a southern white rhino at the San Diego Zoo, was impregnated by artificial insemination on March 22 and, if all goes well, will birth the calf in summer 2019.

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image: Image of the Day: <em>Xenopus</em> Pigment

Image of the Day: Xenopus Pigment

By The Scientist Staff | May 18, 2018

Researchers recently used CRISPR single-guide RNAs to alter genes involved in pigmentation in frog embryos.

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image: Could a Dose of Sunshine Make You Smarter?

Could a Dose of Sunshine Make You Smarter?

By Ruth Williams | May 17, 2018

Moderate ultraviolet light exposure boosts the brainpower of mice thanks to increased production of the neurotransmitter glutamate.  

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Men received both more and larger grants than women did, ending up with three times as much funding on average.

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image: Image of the Day: Lego Microscopy

Image of the Day: Lego Microscopy

By The Scientist Staff | May 16, 2018

With open-source software and Lego hardware, researchers have created a low-cost, automated method for cellular fluorescence microscopy.

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A new statistical method finds that many genetic variants used to determine trait-disease relationships may have additional effects that GWAS analyses don’t pick up.

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image: Image of the Day: Cancer Spheroid

Image of the Day: Cancer Spheroid

By The Scientist Staff | May 15, 2018

3-D balls of cells can be used to screen for potential cancer drugs.

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image: “Minibrains” May Soon Include Neanderthal DNA

“Minibrains” May Soon Include Neanderthal DNA

By Ashley Yeager | May 14, 2018

Brain organoids engineered to carry the genetic material could reveal how our brains are similar to and different from those of our closest relatives.

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image: RNA Moves a Memory From One Snail to Another

RNA Moves a Memory From One Snail to Another

By Ashley Yeager | May 14, 2018

Injecting molecules from a sea slug that received tail shocks into one that didn’t made the recipient animal behave more cautiously. 

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