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image: Mammals May Have a 12-Hour Clock

Mammals May Have a 12-Hour Clock

By Ashley Yeager | June 6, 2017

Data point to peaks in gene expression in the morning and evening that are distinct from day-night circadian cycles.


image: Book Excerpt from <em>Behave</em>

Book Excerpt from Behave

By Robert Sapolsky | June 1, 2017

In the book’s introduction, author and neuroendocrinologist Robert Sapolsky explains his fascination with the biology of violence and other dark parts of human behavior.


The human brain’s insular cortex is adept at registering distaste for everything from rotten fruit to unfamiliar cultures.

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image: Mammalian Jaws Evolved to Chew Sideways

Mammalian Jaws Evolved to Chew Sideways

By Catherine Offord | June 1, 2017

Parallel evolution in jaws and teeth helped early mammals diversify their diets.

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image: Researchers Discover Salt-Loving Methanogens

Researchers Discover Salt-Loving Methanogens

By Abby Olena | May 26, 2017

Two previously overlooked archaeal strains fill an evolutionary gap for microbes.


image: Male Fish Borrows Egg to Clone Itself

Male Fish Borrows Egg to Clone Itself

By Ruth Williams | May 24, 2017

A fish created by spontaneous androgenesis is the first known vertebrate to arise naturally by this asexual reproductive phenomenon. 


Harvesting lab-raised zebrafish based on their size led to differences in the activity of more than 4,000 genes, as well as changes in allele frequencies of those genes, in the fish that remained.


image: Science Celebrities: Where Are the Women?

Science Celebrities: Where Are the Women?

By Erin Biba | May 15, 2017

Men have traditionally stolen the spotlight as scientific popularizers on TV, but women are making names for themselves in other formats.


New research provides evidence that the ancient hominin species might not be so ancient after all.


The infamous "Baby Louie" embryo is a giant oviraptorosaur fossil from China that resembled a gargantuan bird.


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