Uncategorized
- Neuroscience
Chicks show left-to-right number bias
Recently hatched chicks may have their own version of the left-to-right mental number line.
- Genetics
Pregnancy in mammals evolved with help from roving DNA
DNA that “jumped” around the genome helped early mammals shift from laying eggs to giving birth to live young.
- Neuroscience
Newly identified brain circuit could be target for treating obesity
In mice, specific nerve cells control compulsive sugar consumption, but not normal feeding, hinting at a new therapeutic target for treating obesity.
- Astronomy
Oldest solar system unearthed by Kepler
Five rocky planets orbit the 11.2-billion-year-old star Kepler 444, suggesting that Earth-sized worlds formed in the early universe.
- Earth
‘Island on Fire’ recounts enormous 18th century eruption
The 18th century eruption of Iceland’s Laki volcano spewed sulfurous gases that briefly cooled the globe and probably contributed to the early deaths of tens of thousands of people.
- Anthropology
Israeli fossil may recast history of first Europeans
New find suggests humans mated with Neandertals in Middle East before taking on Europe.
- Climate
Central American fires may intensify U.S. tornadoes
Smoke originating from Central American fires may strengthen U.S. tornadoes.
- Science & Society
Smell circuitry, stalled stem cells and more reader feedback
Readers discuss a journal's publishing practices, ask about the human sense of smell and weigh in on their favorite picks from our Top 25 stories of the year.
- Science & Society
Contemplating the coming of the drones
Editor in Chief, Eva Emerson, contemplates the pros and cons of small drones flocking to our skies and the science behind them, discussed in this issue's feature on animal flight research.
- Animals
Highway bridge noise disturbs fish’s hearing
In the lab, blacktail shiners had trouble hearing courtship growls over Alabama bridge traffic recordings.
- Neuroscience
Immune system may remember and adapt to stress
Mice without immune systems who receive stressed immune cells are less anxious and more social, suggesting that the immune system can adapt to stress.
- Animals
Chameleon tongue power underestimated
A South African chameleon species can shoot its tongue with up to 41,000 watts of power per kilogram of muscle involved, a new study finds.
