Polar bear evolution tracked climate change, new DNA study suggests
A whole-genome analysis suggests that polar bear numbers waxed and waned with climate change, and that the animals may have interbred with brown bears since becoming a distinct species millions of years ago.
Study finds modern dog breeds genetically disconnected from ancient ancestors
Cross-breeding of dogs over thousands of years has made it extremely difficult to trace the ancient genetic roots of today's pets, according to a new study led by Durham University.
Africa's rarest monkey had an intriguing sexual past, DNA study confirms
The most extensive DNA study to-date of Africa's rarest monkey reveals that the species had an intriguing sexual past. Of the last two remaining populations of the recently discovered kipunji, one population ...
Native Americans descended from a single ancestral group, DNA study confirms
For two decades, researchers have been using a growing volume of genetic data to debate whether ancestors of Native Americans emigrated to the New World in one wave or successive waves, or from one ancestral ...
Scientists ID ten genes associated with a risk factor for sudden cardiac death
(PhysOrg.com) -- One minute, he's a strapping 40-year-old with an enviable cholesterol level, working out on his treadmill. The next, he's dead.
Spread of DNA databases sparks ethical concerns
You can ditch your computer and leave your cellphone at home, but you can't escape your DNA. It belongs uniquely to you—and, increasingly, to the authorities.
Researchers find genetic diversity key to survival of honey bee colonies
When it comes to honey bees, more mates is better. A new study from North Carolina State University, the University of Maryland and the U.S. Department of Agriculture (USDA) shows that genetic diversity is ...
Study shows dogs may have been domesticated far earlier than thought
Born to lead? Leadership can be an inherited trait, study finds
Genetic differences are significantly associated with the likelihood that people take on managerial responsibilities, according to new research from UCL (University College London).
30,000-year-old DNA preserved in poo a window into the past
(Phys.org)—Murdoch University DNA scientists have used 30,000-year-old faecal matter known as middens to ascertain which plants and animals existed at that time in the hot, arid Pilbara region of North ...
DNA tests show Lonesome George may not have been last of his species
(Phys.org)—When the giant tortoise Lonesome George died this summer, conservationists from around the world mourned the extinction his species. However, a genetic analysis by Yale University researchers ...
Ancient DNA sheds light on Arctic whale mysteries
Scientists from the Wildlife Conservation Society, the American Museum of Natural History, City University of New York, and other organizations have published the first range-wide genetic analysis of the ...
DNA confirms genetically distinct lion population for Ethiopia
(Phys.org)—A team of international researchers has provided the first comprehensive DNA evidence that the Addis Ababa lion in Ethiopia is genetically unique and is urging immediate conservation action to preserve this vulnerable ...
Little Ice Age led to migration of island hopping arctic foxes
The Little Ice Age allowed a new wave of arctic foxes to colonise Iceland, according to new research.