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A team of scientists was unable to replicate controversial, high-profile findings published in 2011.

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image: Image of the Day: Saltwater Survivors

Image of the Day: Saltwater Survivors

By | January 9, 2017

When road deicing salt enters freshwater ecosystems, prey species such as Daphnia pulex can rapidly evolve tolerance to the contaminant, buffering their local food webs from the impacts of salination.

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image: Book Excerpt from <em>Testosterone Rex</em>

Book Excerpt from Testosterone Rex

By | January 1, 2017

In Chapter 6, “The Hormonal Essence of the T-Rex?” author Cordelia Fine considers the biological dogma that testes, and the powerful hormones they exude, are the root of all sexual inequality.

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The small lizards adapted to unique niches among dozens of isles.

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image: Historical Hunts

Historical Hunts

By | January 1, 2017

See images from a century of fur trapping and hunting in the Amazon basin.

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image: Notable Science Quotes

Notable Science Quotes

By | January 1, 2017

Science under Trump, gene drive, medical marijuana, and more

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Researchers use a century of trade records to uncover differences in the resilience of terrestrial and aquatic species.

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image: More Anti-CRISPR Proteins to Block Cas9

More Anti-CRISPR Proteins to Block Cas9

By | December 29, 2016

The latest CRISPR deactivators to be discovered turn off the Streptococcus pyogenes Cas9 widely used in genome editing.

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image: Cheetah Range Drops 90 Percent

Cheetah Range Drops 90 Percent

By | December 27, 2016

Estimating only 7,100 individuals remaining, researchers urge a reclassification of the species from vulnerable to endangered.

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image: New CRISPR-Cas Enzymes Discovered

New CRISPR-Cas Enzymes Discovered

By | December 22, 2016

A metagenomics analysis finds Cas9 in archaea for the first time, along with two previously unknown Cas nucleases from bacteria.

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