Sep 24 2009
Take a look at the second installment of 23andMe’s Human Prehistory 101 series. 23andMe’s creative team (led by chief illustrator Ariana Killoran) recently released “Out of (Eastern) Africa.” With this new installment, we pick up where the previous video left off, when humans were starting to take their first tentative steps beyond the shores of [...]
Sep 09 2009
About 10,000 years ago, the prehistoric hunter-gatherers of Europe began meeting some new neighbors.
These farmers spread gradually at first, expanding from the Near East through Anatolia and the Balkans. Then agriculture exploded, reaching present-day Britain within a few thousand years. The farmers settled into houses, which soon evolved into villages, towns and eventually cities.
The archaeological [...]
Aug 07 2009
The importance of ABO blood types in transfusions is unquestioned. And the associations between blood type and certain diseases are pretty convincing. But some “scientists” have linked blood type to some pretty wacky stuff.
In the first part of the 20th century it seems that there was nothing some researchers didn’t think was connected to blood [...]
Aug 06 2009
Not long after Karl Landsteiner first described the different ABO blood types, scientists started looking for associations between blood type and other human traits. Some of their theories were truly weird (more on these tomorrow!), but some have held up to scientific scrutiny.
Venous Thromboembolism (VTE)
People with non-type O blood (A, B and AB) have been [...]
Aug 05 2009
When it comes to blood transfusions, what’s good for one person might be deadly for another.
This might seem obvious today, but until 1900 the idea of “blood types” wasn’t understood. A person in need of a transfusion could find himself getting a donation from just about anyone, and sometimes even an animal!
But in 1900 [...]
Jul 22 2009
The Neanderthals have always held a special place in the field of anthropology. The skeletal remains of our short, stocky evolutionary relatives have been found everywhere from Spain to Iraq.
Their physical likeness to our own species, and the possibility that humans and Neanderthals may have interacted, has long fascinated experts and enthusiastic novices alike. But [...]
Jul 20 2009
It may be you’ve heard a rumor that males are on the brink of extinction.
Whatever you may think of that prospect, the rumor is false. But over the past decade, numerous studies have hinted that the Y chromosome, a male necessity, is going the way of the dodo.
Though other studies have suggested this idea may [...]
Jul 09 2009
Most experts agree that the earliest examples of farming and animal domestication lie in the aptly named Fertile Crescent, in present day Iraq. But still many questions have lingered over the years, especially with regard to remnants of farming or animal domestication that have not survived to the present day. What kind of tools did [...]
Jul 02 2009
Not many people could survive the harsh conditions of the Sahara Desert. Yet the Tuareg have lived in the the region for millennia.
The Tuareg call themselves the Imazghan, meaning “free people.” Today they are known for a distinctive dark blue turban worn by the men, and for their long history as gatekeepers of the Sahara [...]
May 28 2009
Type 1 diabetes is on the rise in European children, says a new report.
Researchers studied type 1 diabetes data collected between 1989 and 2003 at 20 centers in 17 European countries. Their results, published online yesterday in the Lancet, show that more children, especially younger children, are being diagnosed with the disease each year. Based [...]
