Life
We summarize the week's scientific breakthroughs every Thursday.
- Ecosystems
Moose drool can undermine grass defenses
Saliva from moose and reindeer sabotages plants’ chemical weaponry.
- Life
Mouse sperm parties make for straight swimmers
Mouse sperm hunt for eggs in packs, but grouping doesn’t boost speed. Instead, gangs of the reproductive cells move in straighter lines.
- Animals
Elephant’s big nose wins most sensitive sniffer
A genetic survey reveals that African elephants harbor more smell sensors than any other known animal.
- Neuroscience
For rats, a break from stress isn’t worth the relief
An unplanned vacation from stress might seem like a good idea, but a new study in rats shows that unpredictable escapes from pressure produce more strain on the first day back.
- Life
Bacteria’s bodies do whirlies to help them swim
Kidney-shaped Caulobacter crescentus bacteria swim with both their corkscrew propellers called flagella and their bodies, scientists say.
- Genetics
Hints about schizophrenia emerge from genetic study
From thousands of genomes, researchers pinpoint dozens of DNA changes that may underlie schizophrenia
- Animals
Termite soldiers locate battles with vibrational clues
To locate invasions, termite soldiers listen for millisecond-long delays in vibrational distress signals sent out by other soldiers.
- Health & Medicine
Carbs and gut microbes fuel colon cancer
Western nations experience high levels of colon cancer, and carbo-loading gut microbes might explain why, says a new study in mice.
- Microbes
Gut microbes help packrats eat poison
Antiobiotics and fecal transplants in desert woodrats shown that gut microbes can help plant-eaters metabolize toxins.
- Ecosystems
Offshore wind farms may be seal feeding grounds
Harbor seals were tracked visiting offshore wind farms, probably to find food, researchers say.
- Life
Pregnancy disorder shares aspects with Alzheimer’s
Misfolded proteins, the hallmark of Alzheimer’s and mad cow diseases, are found in urine of women with preeclampsia.
- Neuroscience
Obese women struggle to learn food associations
In a lab experiment, women fail to connect color signal with tasty reward, a deficit that may contribute to obesity.
