Life
We summarize the week's scientific breakthroughs every Thursday.
- Animals
Sea slug carries disposable penis, plus spares
A hermaphroditic gastropod sheds its penis after one use, then uncoils another.
- Humans
In research, it matters whether you’re a man or a mouse
A study that compares trauma responses of mice with those in people questions the relevance of mouse research to human disease.
- Life
Ancestors of today’s placental mammals may never have shared the Earth with dinosaurs
A newly constructed family tree dovetails with the fossil record, but differs considerably from previous genetic studies by suggesting that placental mammals emerged after the dinosaur extinction.
- Animals
Compared with rodents, bat species carry more viruses
Viruses that can jump from animals to people may find the flying mammals a fine place to lurk.
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- Life
Inflammation feeds E. coli
Inflammation, normally a defense against microbes, may become counterproductive in the gut by feeding disease-causing bacteria.
- Science & Society
No New Meds
With drug firms in retreat, the pipeline for new psychiatric medications dries up.
- Animals
Mole sniffs the world in stereo
Nostrils of the common mole recognize slight differences in smells to steer it toward its food.
- Oceans
Life found deep below Antarctic ice
Lake buried under 800 meters of ice hosts cells, researchers find.
- Life
Nerve stem cells treat gut disorder in mice
Nerve stem cell therapy treats gut disorder by connecting to nervous system.
- Life
As fish watch prey, researchers watch fish’s brains
Genetically engineered neurons allow researchers to watch fish brains as they track prey.
- Life
Pigeons’ prominent plumage traces to one gene
A mutation responsible for ruffs, crests and collars appears to have arisen once and then passed among species through breeding.
