Uncategorized
- Health & Medicine
HIV vaccine trial stopped
Shots-plus-booster strategy deemed ineffective in preventing infection.
- Health & Medicine
Hookah smoking delivers carcinogens and carbon monoxide
Water pipes deliver carcinogens, nicotine and carbon monoxide to the user, a study finds.
- Life
Signs of culture in whales and monkeys
Mammals learn feeding behaviors from their friends and family members.
- Life
So far, the great tit has coped with climate change
Earlier arrival of birds’ food due to warming temperatures hasn’t yet reduced bird population.
- Humans
Maya civilization’s roots may lie in ritual
Cultural exchanges in southern Mexico and Guatemala tied to ancient society's rise.
- Humans
Web searches for money words anticipate market moves
Dow drops follow weeks when more people search Google for ‘debt’ or ‘stocks.’
- Space
Comet’s water still hanging around on Jupiter
Shoemaker-Levy 9 supplied almost all of aqueous part of the planet's upper atmosphere.
- Life
Birds may have had to crouch before they could fly
Digital reconstructions of avian ancestors show a progressive redistribution of weight toward the front of the body.
- Earth
Early Earth’s chlorine blown away by giant impacts
Low levels of chlorine on planet's surface have long puzzled scientists.
- Life
Mutation makes H5N1 flu lose its grip
Laboratory-added genetic change makes avian influenza unable to bind to bird cells.
- Earth
Remnants of Earth’s crust survive in the planet’s interior
A slab stayed unperturbed in the mantle for billions of years before resurfacing, sulfur measurements suggest.
- Life
Why corals do calisthenics
Pulsating motion appears to flush water to improve photosynthetic efficiency in symbiotic algae.
