After the migrant crisis from Syria hit Germany, it challenged the Willkommenskultur (Welcome culture). While most Germans swung into action to help settle the millions of refugees coming to Germany, some (self-proclaimed) neo-nazis were quoted as saying the German people faced “the destruction of our genetic heritage” and risked becoming “a gray mishmash”.
Well I have good/bad news for everyone. There is no unique German genetic heritage. There also isn’t a unique French genetic heritage, or Norwegian or Polish or Italian genetic heritage. All Europeans are already a mishmash of repeated ancient migrations. New studies show that almost all Europeans descend from three major migrations in the past 15,000 years including two from the Middle East.
Want to know more? Check it out over at Science.
Science denialists often claim that “the scientists haven’t decided” “it’s still being debated”. With respect to climate change, evolution and GMOs, that’s largely not true.
But the world of anthropology is heating up these days with some hot topics like when were humans in North America, and what did our ancestors look like/do?
Want to know more about what’s lighting the anthropological scene up? Read about it here.
The Aztecs were once a great sprawling civilization, until they were brought low by a pestilence that devastated the native population of Mexico. And a pair of studies now suggest that it may have been caused by a deadly form of samonella from Europe.
Read about it over at Nature!
The 58-year-young King Albert I of Belgium died while rock climbing in 1934. His body was found lifelessly hanging from a rope from the crags at Marche-les-Dames and it was a scandal to the tune of JFK like conspiracy.
82 years later we have a new clue into the cause of the Belguim royals death! And it comes from… plants.
Read about it over at Smithsonian.
This is an amazing story. It involves a 15 year old boys curiosity, a local caving association (I didn’t know there was such thing) and am amazing archeological find.
I’m not going to tell you more, just suggest you go read about this marvelous tale of coincidental discovery.
Two years ago today, Nothing in Biology Makes Sense! launched with a welcome from me and a post about coevolutionary medicine from CJ. Since then, we’ve written about everything from mammoth extinction events to diet fads, from the rationality of science denialism to the selective effects of agriculture—and we’ve had a lot of fun doing it.
So what’s ahead for this fine blog? Well, the National Network for Child Care “Ages and Stages” resource has this to say about two-year-old
science blogs children:
Two-year-olds like to be independent! Favorite words are “Mine” and “No” and “I do it!” Emotions take on a roller coaster-like quality as 2-year-olds can go from excitement to anger to laughter within a few moments. A great deal of time is spent exploring, pushing, pulling, filling, dumping, and touching.
Here’s hoping our “terrible twos” are full of lots more exploring, and possibly also dumping. Also, we would like to apologize in advance if the Twitter feed gets a bit cranky when we run out of juice.
Cross-posted from Denim and Tweed.
It is a widespread misconception that, as we developed the technology to reshape our environment to our preferences, human beings neutralized the power of natural selection. Quite the opposite is true: some of the best-known examples of recent evolutionary change in humans are attributable to technology. People who colonized high-altitude environments were selected for tolerance of low-oxygen conditions in the high Himalayas and Andes; populations that have historically raised cattle for milk evolved the ability to digest milk sugars as adults.
A recent study of population genetics in Native American groups suggests that another example is ripening in the experimental fields just a few blocks away from my office at the University of Minnesota: Corn, or maize, may have exerted natural selection on the human populations that first cultivated it.
The target of this new study is an allele called 230Cys, a variant of a gene involved in transporting cholesterol. 230Cys is known only in Native American populations, and it’s associated with abnormally low production of HDL cholesterol (that’s the “good” kind of cholesterol) and thereby increased risk for obesity, diabetes, and heart disease. In Native American populations, the genetic code near 230Cys shows the reduced diversity associated with a selective sweep, which suggests that, although it’s not particuarly helpful now, this variant may have been favored by selection in the past.