| Dec 18, 2013
| 2:33 PM
A 50,000-year-old toe bone found in a Siberian cave is giving scientists a surprising view of the breeding habits of early humans.
In what has been described as a “Lord of the Rings”-type world, researchers say that Homo sapiens,...
| Nov 1, 2013
| 3:00 AM
The forensic anthropologist lifted a thighbone from the skeleton arrayed on her metal lab table and studied the fine cracks traversing its surface, gray and weathered as driftwood.
Associate professor Lori Baker, 44, set the bone down and cradled the...
| Nov 11, 2013
| 3:31 PM
Cocaine use may not make you a better dad, but it may make your son a bit more resistant to addiction, says a new study conducted on rats.
Compared with the pups of rats who got no cocaine, the male offspring of rats that were allowed to self-administer...
| Dec 11, 2013
| 5:00 AM
Men may want to double down on a healthy diet and clean living in the months before procreation, according to a study that suggests a father’s vitamin B9 deficiency may contribute to birth defects in offspring.
The findings, published online...
| Feb 6, 2014
| 6:30 PM
DEAR MAYO CLINIC: What are telomeres, and how do they affect overall health?
ANSWER: Telomeres are part of the body's chromosomes. Located at the tip of each chromosome, telomeres function as a type of cap, protecting the DNA inside. Studies have shown...
| Mar 3, 2014
| 12:20 PM
A 30,000-year-old giant virus has been revived from the frozen Siberian tundra, sparking concern that increased mining and oil drilling in rapidly warming northern latitudes could disturb dormant microbial life that could one day prove harmful to man....
| Feb 13, 2014
| 2:12 PM
Scientists have mapped the effects of war, colonization, trade, migration and slavery on the genetic mixing of humans over the bulk of recorded history and created an online interactive atlas of humanity's genetic history.
In a paper published...
| Nov 20, 2013
| 7:19 PM
DNA and proteins are arguably the most important components of the cells of living creatures. Both are produced by stringing together long chains of individual molecules — amino acids in the case of proteins and nucleotides in DNA.
| Feb 17, 2014
| 4:45 PM
Here's a novel idea, given that American parents send almost 4 million of their children out to play tackle football every year, despite mounting concerns about youth concussions: Maybe the helmets their kids wear should be tested and ranked on how well...
| Oct 21, 2013
| 5:14 PM
Move over birthday candles, and step aside telomeres; there may be a new kind of biological clock in town. And this one may prove useful in predicting where age-related diseases such as cancer are most likely to strike.
The proposed new body clock...
| Oct 20, 2013
| 2:00 AM
If one sign of a happy relationship is that the partners rarely run out of things to talk about, then cancer researchers Stephen Baylin and Feyruz Rassool of Baltimore have been a blessed couple indeed.
In the 13 years they've been married, they've...