Life
We summarize the week's scientific breakthroughs every Thursday.
- Life
Iguanas’ one-way airflow undermines usual view of lung evolution
Simple-looking structures create sophisticated one-way air flow in iguana lungs, undermining old scenarios of lung evolution.
- Animals
When sweet little bees go to war
Tiny Tetragonula bees don’t sting but have strong jaws. The bees fight by biting a combatant and not letting go.
- Neuroscience
Magnets in helmets might make football safer
The repulsive force of magnets in football helmets could slow the impact of collisions, reducing concussion danger and making the game safer.
- Environment
Colorado deluge produced flood of drug-resistance genes
Flooding in Colorado’s South Platte River Basin washed antibiotics and drug-resistance genes into pristine waterways.
- Archaeology
Feedback
Readers ask questions about a study on sweeteners, how scientists recognize primitive tools and the purpose of a dinosaur's sail.
- Environment
Spiders enlisted as pollution sensors for rivers
Hunting arachnids provide a better picture of chemical threats to food web.
- Animals
Ant colonies prefer homes infected with fungus
Choosing a new nest site ridden with a potentially deadly fungus may be a way for pharaoh ants to immunize themselves against the pathogen, scientists say.
- Life
Semen seems to counteract microbicides that kill HIV
Semen seems to inhibit most microbicides from killing HIV, but one that targets a receptor on cells remains effective, suggesting a promising approach against HIV.
- Life
Study finds lack of evidence for infanticide link to monogamy
A new study contradicts idea that the rise of infanticide among mammals drove the evolution of monogamy.
- Animals
Giant otters hum, scream, say ‘hah’ and more
Often overlooked as vocalists, giant otters make 22 different calls as adults and 11 kinds of baby babble.
- Neuroscience
Stopped brain clock saves memory in hamsters
Broken timekeeper in brain may explain some memory problems, hamster study suggests.
- Animals
Few humans were needed to wipe out New Zealand’s moa
A new study finds that the Maori population was still small when it managed to drive several species of large, flightless birds extinct.
