Stories by Marcia Malory

Viking families traveled together, research shows

(Phys.org)—A new study shows that when Vikings moved to new territories, men and women traveled together. Erika Hagelberg of the University of Oslo and her colleagues compared ancient Norse and Icelandic mitochondrial DNA ...

Dec 09, 2014

Scientists resurrect 700-year-old viruses

(Phys.org) —Eric Delwart of the Blood Systems Research Institute in San Francisco and colleagues have found two 700-year-old viral sequences in frozen caribou dung in an arctic ice patch. The researchers isolated part of ...

Oct 28, 2014

Researchers uncover tomato's genetic history

Two years after the sequencing of the genome of one variety of tomato, scientists have sequenced the genomes of 360 tomato varieties. By analyzing the relationships among these genomes, Sanwen Huang of the Institute of Vegetables ...

Oct 14, 2014

Research shows seven-year-olds can think strategically

(Medical Xpress)—A study by Melissa Koenig of the University of Minnesota and colleagues shows that by the time they reach the age of seven, children can think strategically, in an adult manner. The researchers found that ...

Sep 02, 2014

Mutant poliovirus caused Republic of Congo outbreak in 2010

(Medical Xpress)—In 2010, a polio outbreak in the Republic of Congo (ROC) resulted in 445 confirmed cases, of which 47% were fatal. Originally, researchers thought low levels of immunization were responsible for the severity ...

Aug 19, 2014