There is a party atmosphere to this week’s list, as we have stories on LSD, cannabis, New Coke, and ancient beer. Speaking of ancient, we also find out how scientists recovered the oldest Scandinavian DNA from a piece of very old chewing gum.
In the animal world, we learn just how involved bonobo mothers are in their sons’ sex lives, and we also read about firemen who had to fight a blaze inside a house filled with hundreds of snakes.
10Ancient Gum Yields Ancient DNA
Photo credit: Natalija Kashuba/Stockholm University
Scientists have recovered the oldest Scandinavian human DNA from 10,000-year-old chewing gum.Huseby-Klev is an early Mesolithic village that has been excavated since the 1990s. Among the ancient items recovered at the site was a primitive form of chewing gum. It consisted of lumps of birch bark which were masticated. Eventually, they turned into a glue-like substance which was sometimes used to attach arrowheads or sword handles.For years, the notion of retrieving DNA from the site was considered impossible because few bones were found in the village, and they were too degraded to obtain viable samples. However, two Norwegian scientists from the University of Oslo thought that the birch bark material might still contain DNA from the saliva of the people who chewed it.They were proven right. Researchers extracted and sequenced enough DNA to show that it came from at least three people: two women and one man.[1] These people came from the south. Meanwhile, the weapons and tools they used were Russian in style. This discovery lends credence to one hypothesis that claims there are two distinct lineages to the early settlers of Scandinavia.
9A Bonobo Mother’s Work Is Never Done
If you feel that your mother is too pushy when it comes to your love life, just be glad you’re not a bonobo. A new study by German primatologists published in Current Biology showed that male bonobos that still live with their mothers are three times more likely to have offspring than those on their own because their mothers take a very active role in their sex lives.Bonobo society is dominated by females, so mothers of high rank are able to go to great lengths to ensure that they become grandmothers. They chaperone their sons when they are meeting females. During the act itself, they act as bodyguards and ensure that the mating couple is not disturbed by other males who might charge their sons.The mothers are also willing to get physical in order to provide more opportunities for their offspring. They will charge at other males who are trying to woo fertile females. In rare instances, researchers reported that the high-ranking females literally dragged unrelated male bonobos off their sexual partners.[2]A team from the Max Planck Institute for Evolutionary Anthropology in Leipzig observed wild bonobos in the Congo and compared them to chimpanzee populations in Uganda, Tanzania, and Ivory Coast. Chimp females had no apparent impact on their offspring’s reproductive success. Moreover, while bonobo mothers were active in their sons’ sex lives, the same was not true for daughters. However, bonobo females typically leave to start their own group.
8New Kilo On The Block
After 130 years, there is a new definition for the kilogram. From now on, the unit of measurement will no longer be based on a “prototype kilogram” stored in France but on a fundamental figure in physics called the Planck constant.For over a century, the kilogram was defined by an actual piece of shiny metal dubbed “Le Grand K,” which was stored in a vault in Sevres. However, despite our best efforts, the prototype did not remain completely unchanged. Repeated cleanings and exposure to air caused Le Grand K to lose around 50 micrograms. That’s why at an international conference last November, representatives from 60 countries voted to change the definition to something truly universal and stable.The new standard went into effect this Monday.[3] From now on, the kilogram will be defined using Planck’s constant and measured using an extremely sensitive instrument called a Kibble balance. Modern definitions for other units also went into effect, such as the Kelvin, the mole, and the ampere.
7Snake House
What is scarier than a house filled with snakes? The answer is a house filled with snakes that is on fire.That was the scenario that a group of firefighters from Arizona faced this week.[4] They had to fight a blaze which engulfed a building that was home to hundreds of snakes and other reptiles. Phoenix fire captain Greg Hawk said the whole experience will leave a memorable mark and that it was “outside-of-the-box crazy.”Because of the unusual nature of the event, firemen decided to fight the fire from the inside instead of the outside. This way, they could save as many animals as possible. Some of them were dousing the flames with water, while others were next to them, wrangling snakes into buckets.All of the reptiles that survived the blaze were taken in by the Phoenix Herpetological Sanctuary. In addition to the scaly critters, firefighters also rescued a couple of dogs and cats.
6New New Coke
Photo credit: Coca-Cola Co.
One of the biggest marketing flops in history is going to get a second chance, as Coca-Cola is bringing back New Coke after 34 years.Back in 1985, the soft drink giant changed the formula of its flagship drink. People hated it, though, and just three months after New Coke was introduced, the old version was brought back as “Coca-Cola Classic.” The response was so negative that, even to this day, some believe New Coke was intentionally bad as part of a marketing ploy to revive interest and sales in the classic drink.New Coke will be featured in the upcoming third season of Stranger Things, an ultra-popular Netflix show that is part horror, part tribute to the 1980s. The latest season is set in 1985, so, naturally, one of the most notorious pop culture moments of that year had to make an appearance.Coca-Cola is hoping that a hefty dose of nostalgia will help New Coke become more popular the second time around. Even so, the drink won’t be available to buy in shops. It will be bundled with limited-edition Stranger Things Coke bottles and cans and packed into special vending machines inspired by the show.[5]
5The Drink Of The Pharaohs
Photo credit: EPA
Israeli scientists have made a breakthrough in the field of experimental archaeology by brewing beer using ancient yeast from thousands of years ago.Researchers from multiple Israeli institutions collaborated on a project which saw them collect yeast colonies that survived on beer and wine vessels which were up to 5,000 years old. Then, relying on modern techniques and with the help of a master brewer, they used the yeast to make a drink akin to...
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8. So the Kilo is going to the dogs? I mean, that's surely what they mean by "Kibble blanace".
ReplyDeleteHow long do they have to let it sit on their nose?