Oetzi the Iceman has a new look. Decades after the famous glacier mummy was discovered in the Italian Alps, scientists have dug back into his DNA to paint a better picture of the ancient hunter.
They determined that Oetzi was mostly descended from farmers from present day Turkey, and his head was balder and skin darker than what was initially thought, according to a study published Wednesday in the journal Cell Genomics.
Oetzi, who lived more than 5,000 years ago, was frozen into the ice after he was killed by an arrow to the back. His corpse was preserved as a “natural mummy” until 1991, when hikers found him along with some of his clothing and gear — including a copper ax, a longbow and a bearskin hat. Since then, many researchers have worked to uncover more about the mummy, which is displayed at the South Tyrol Museum of Archaeology in Bolzano, Italy.
An earlier draft of Oetzi’s genome was published in 2012. But ancient DNA research has advanced since then, so scientists decided to take another look at the iceman’s genes, explained study author Johannes Krause, a geneticist at Germany’s Max Planck Institute for Evolutionary Anthropology. They used DNA extracted from the mummy's hip bone.
The updated genome is “providing deeper insights into the history of this mummy,” said Andreas Keller of Germany’s Saarland University. Keller worked on the earlier version but was not involved with the latest study.
Based on the new genome, Oetzi's appearance when he died around age 45 was much like the mummy looks today: It's dark and doesn't have much hair on it, said study author Albert Zink, head of the Institute for Mummy Studies at Eurac Research in Italy. Scientists previously thought the iceman was lighter-skinned and hairier in life, but that his mummified corpse had changed over time.
His genome also showed an increased chance of obesity and diabetes, the researchers reported.
And his ancestry suggests that he lived among an isolated population in the Alps, Zink said. Most Europeans today have a mix of genes from three groups: farmers from Anatolia, hunter-gatherers from the west and herders from the east. But 92% of Oetzi’s ancestry was from just the Anatolian farmers, without much mixing from the other groups.
___
The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.
On this episode of Cheddar Innovates: Sidechef CEO breaks down how it's building a platform to make recipe shopping easy; Luum CEO explains the process of having a robot put on eyelash extensions; A look at Curiosity Stream's new original series, 'Evolve.'
Moderna launched a clinical trial of a COVID-19 booster shot specifically targeting the omicron variant. The first participant has already received a dose, and Moderna expects to enroll about 600 adults total, split between two groups. In the first group, participants will have previously received two doses of the Moderna vaccine, and in the second, participants will have received its booster. Dr. Paul Burton, chief medical officer at Moderna, joined Cheddar’s Opening Bell to discuss the trial, yearly boosters, and what lies ahead for the company.
With the 2022 Beijing Winter Olympics right around the corner, experts are warning that climate change is threatening not only the event but also the future of snow sports. Despite being the world's top polluter, China is hoping to use the event to demonstrate the country's commitment to fighting climate change, and pledging to host a "low carbon" games. Xubin Zeng, professor of hydrology and atmospheric sciences at the University of Arizona, joins Cheddar News.
New research is suggesting that giving extra cash to low-income mothers can actually influence the brain development of their infants. These findings provide the first rigorous evidence of how payments and monetary support can affect children in the early years of life. Authors of the study, Nathan Fox, professor in the department of human development at the University of Maryland, and Sonya Troller-Renfree, postdoctoral research associate at Teachers College at Columbia University, join Cheddar News to discuss.
Communities of color are disproportionately affected by climate change and continuously feel the impacts. Mark Magaña, founding president and CEO of Green Latinos joined All Hands to discuss.
Neil Young has come up with an ultimatum for Spotify: his music or Joe Rogan’s podcast. This comes over concerns that the podcast is spreading COVID-19 vaccine misinformation to its listeners. "The Joe Rogan Experience," which is exclusive to Spotify, is currently the number one streamed podcast on the platform.
Commercial and residential buildings account for 13% of carbon emissions in the U.S., according to the EPA, and one company says it has a solution. Runwise says it has updated the boiler and heating systems of thousands of buildings, and that its technology not only lowers carbon output but also saves landlords money. Lee Hoffman, Co-Founder and COO of Runwise, joined Cheddar Climate to discuss.
Jo Ruxton, Founder of Ocean Generation, joins Cheddar Climate, where she explains the threat that plastic pollution poses to marine life, but elaborates on why we shouldn't be looking to ban plastic entirely. Ruxton also discusses her biggest takeaways while producing the film ‘A Plastic Ocean.'
President Joe Biden's Build Back Better deal seems all but finished after months of Democratic infighting and the Senate's deadlock over certain provisions. But Biden mentioned during a press conference marking his first year in office that 'chunks' of the bill could be passed. Is that enough motivation to force Democrats to rally around certain parts of the bill - especially those that focus on climate and green energy? Andrew Freedman, Energy and Climate Reporter at Axios, joins Cheddar Climate to discuss whether Senate Democrats will be able to rally around climate provisions, if the idea of passing Build Back Better in 'chunks' is doable, and more.
