bacteria, ecology, developmental biology
Mitochondria’s Bacterial Origins Upended
Mitochondria’s Bacterial Origins Upended
Shawna Williams | Apr 25, 2018
Contrary to some hypotheses, the organelles did not descend from any known lineage of Alphaproteobacteria, researchers find.
Fungus Repurposed a Bacterial Gene to Sense Gravity with Crystals
Fungus Repurposed a Bacterial Gene to Sense Gravity with Crystals
Viviane Callier | Apr 24, 2018
Rather than getting a gene for its original function, a horizontal gene transfer provides the raw material for evolutionary innovation.
Opinion: “Drug Sanctuaries” Offer Hope to a Post-Antibiotic World
Opinion: “Drug Sanctuaries” Offer Hope to a Post-Antibiotic World
Rees Kassen | Apr 24, 2018
Drug-free environments, such as a designated ward in a hospital, might reduce the strength of selection for resistance.
Bowhead Whales Impress Researchers With Their Song Diversity
Bowhead Whales Impress Researchers With Their Song Diversity
Catherine Offord | Apr 4, 2018
A group of around 300 whales produced 184 distinct songs over just a few years, according to a new study.
Infected Ants Chemically Attract Workers to Destroy Them
Infected Ants Chemically Attract Workers to Destroy Them
Jim Daley | Apr 1, 2018
Social insects kill infected individuals for the benefit of the colony—and now a study has shown how they know who’s sick.
Ocean Sunfish Could Offer Clues to the “Rise of Slime”
Ocean Sunfish Could Offer Clues to the “Rise of Slime”
Ashley Yeager | Apr 1, 2018
A controversial hypothesis suggests that jellyfish may one day rule the oceans, and Mola mola may tell us if we are approaching a tipping point.
Image of the Day: New Neurons
Image of the Day: New Neurons
The Scientist Staff | Mar 28, 2018
Scientists discover a molecular factor that allows them to follow neurons from birth to maturity.
Tadpoles Keep Eating Because They Don’t Feel Full
Tadpoles Keep Eating Because They Don’t Feel Full
Catherine Offord | Mar 28, 2018
Baby frogs don’t develop the neural circuitry responsible for feeding inhibition until they begin metamorphosing into adults. 
Increase in Global Antibiotics Consumption Driven by Income Gains
Increase in Global Antibiotics Consumption Driven by Income Gains
Shawna Williams | Mar 27, 2018
A study finds substantial growth in use of the drugs this century, linked to gains in wealth in low- and middle-income countries.
Image of the Day: Morphing Cells
Image of the Day: Morphing Cells
The Scientist Staff | Mar 27, 2018
By removing a single gene, researchers change the developmental fate of tumor cells in mice.