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image: RNA Protects “Naked” Genomes from Retrotransposons

RNA Protects “Naked” Genomes from Retrotransposons

By | June 30, 2017

Transfer RNA fragments prevent jumping genes from hopping around in the mouse embryo, when histone methylation can’t do the job.

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Students will not learn the theory in primary and secondary schools nationwide. 

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The new fossils push the origin of the human species back by 100,000 years.

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image: Mammals May Have a 12-Hour Clock

Mammals May Have a 12-Hour Clock

By | June 6, 2017

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

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The new findings, obtained from cell culture experiments, could explain the link between infection with the virus during pregnancy and infant microcephaly.

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image: Mammalian Jaws Evolved to Chew Sideways

Mammalian Jaws Evolved to Chew Sideways

By | 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 | May 26, 2017

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

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image: Male Fish Borrows Egg to Clone Itself

Male Fish Borrows Egg to Clone Itself

By | May 24, 2017

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

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image: A Triple Threat

A Triple Threat

By | May 22, 2017

The mosquitoes that carry Zika may be able to transmit two other viruses at the same time.

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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.

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