DIRS.INFO The most relevant business & tech news

☆ DNA reveals surprises trapped in teeth of ‘Tsavo man-eater’ lions
▼ + stars: | 2024-10-11 | by ( Ashley Strickland | ) edition.cnn.com time to read: +10 min

Thomas Gnoske, a collections manager at the museum, first spotted thousands of hairs trapped within the lions’ teeth when he examined their skulls in the 1990s. “Our analysis showed that the historic Tsavo lions preyed on giraffe, human, oryx, waterbuck, wildebeest, and zebra, and we also identified hairs that originated from lions. The Tsavo lions were maneless, like this adult male lion. The combined efforts opened a treasure trove of data about the lions’ prey as well as about the predators themselves. “It suggests that the Tsavo lions may have either traveled farther than previously believed, or that wildebeest were present in the Tsavo region during that time,” de Flamingh said.

Persons: John Henry Patterson, Patterson, Thomas Gnoske, ”, Alida de Flamingh, Gnoske, Julian Kerbis Peterhans, Kerbis Peterhans, David Sewell, Kerbis, Nduhiu, de Flamingh, Ripan, Andrew Wasike, Flamingh, ” de Flamingh, “ Patterson, John Warburton, Lee, Aditya Dicky Singh, Malhi, Love Dalén, Dalén, wasn’t, ” Gnoske Organizations: CNN, Uganda Railway, Chicago’s Field, Field Museum, University of Illinois, Field, The, Roosevelt University, Alamy, National Museums of, University of Nairobi, Anadolu Agency, Getty, Stockholm University, “ Locations: Kenya, Uganda, University of Illinois Urbana, Champaign, Chicago, Samburu, National Museums of Kenya, Tsavo, Cape, Africa

☆ Woolly rhino mummy found preserved in Russian permafrost after 32,000 years
▼ + stars: | 2024-09-25 | by ( Issy Ronald | ) edition.cnn.com time to read: +4 min

CNN —Scientists have uncovered a woolly rhino so well preserved in the Russian permafrost for more than 32,000 years that its skin and fur are still intact. This woolly rhino died when it was about four years old and that age, combined with its good state of preservation, has allowed scientists to learn more about the now-extinct species. This woolly rhino mummy has been well-preserved by the permafrost. Once this woolly rhino died, it lay frozen in permafrost until a team of Russian scientists from research institutions in Yakutsk and Moscow discovered it in August 2020 on the banks of the Tirekhtyakh River. As part of an agreement with local authorities in the region where the woolly rhino was found, tusk hunters have to contact paleontologists whenever they discover something of interest like this mummified woolly rhino, meaning that there is a steady stream of well-preserved specimens specifically from this area.

Persons: wasn’t, “ There’s, Dalén Organizations: CNN —, Stockholm University, CNN, Sciences, Russian Academy of Sciences Locations: Siberia, Yakutsk, Moscow

☆ Bronze Age-style ship recreates a 4,000-year-old journey
▼ + stars: | 2024-07-13 | by ( Ashley Strickland | ) edition.cnn.com time to read: +6 min

Fast-forward to seventh century East Anglia in the United Kingdom, where an Anglo-Saxon warrior king was buried alongside exquisite goods within a massive ship. Researchers are hoping to reconstruct the ship — and it’s not the only vessel gaining new life centuries after disappearing from time. Emily Harris/Zayed National MuseumUsing a supply list written on a clay tablet, a team of experts in the United Arab Emirates has reconstructed a Bronze Age ship. Once upon a planetScientists excavated a 52,000-year-old woolly mammoth skin from the Siberian permafrost. Love Dalén/Stockholm UniversityThe freezing temperatures of the Siberian permafrost preserved a piece of 52,000-year-old woolly mammoth skin so well that it contains a first-of-its-kind genetic treasure trove.

Persons: it’s, Emily Harris, Shipwrights, Jacob, Alex Braczkowski, Griffith University Jacob, Tibu, Butch Wilmore, Suni Williams, James Webb, Ashley Strickland, Katie Hunt Organizations: CNN, East, Zayed National, United Arab Emirates, Zayed National Museum, Griffith University, Uganda’s Queen Elizabeth, International Space Station, NASA, Boeing, European Space Agency, James Webb Space, Penguin, —, CNN Space, Science Locations: Siberia, East Anglia, United Kingdom, Persian, Mesopotamia, Zayed, Abu Dhabi, Sweden, Denmark, Peru, Machu Picchu, Uganda’s, Stockholm, Western Australia

☆ Fossils of ancient chromosomes found for the first time in 52,000-year-old woolly mammoth skin
▼ + stars: | 2024-07-11 | by ( Jacopo Prisco | ) edition.cnn.com time to read: +11 min

CNN —A piece of woolly mammoth skin excavated from the Siberian permafrost has been found to contain fossil chromosomes in a first-of-its-kind discovery, according to a new study. The new study revealed that fossils of ancient chromosomes survive in this skin sample. But the DNA from elephants was also needed to assemble the mammoth genome. The researchers hope to use the findings to assemble the woolly mammoth genome completely. “This structural information provides insights into functions of the woolly mammoth genome that were invisible using previous genomic methods,” Heintzman said in an email.

Persons: ”, Erez Lieberman Aiden, Lieberman Aiden, Olga Dudchenko, Dudchenko, Elena Kizilova, Kevin Campbell, ” Campbell, ” Dudchenko, ” Aiden, “, Cynthia Pérez Estrada, ” Pérez Estrada, there’s, Adam Fotos “, Marcela Sandoval, Velasco, Pérez Estrada, Peter Heintzman, ” Heintzman, Dmitry Filatov, ” Filatov, ” Hendrik Poinar, Poinar Organizations: CNN, Baylor College of Medicine, Center, Theoretical, Rice University, of Cytology, University of Manitoba, Stockholm University, Houston Astros, Center for Genome Architecture, Baylor, Rice’s, University of Copenhagen, University of Oxford, McMaster University Locations: Belaya Gora, Siberia, Canada, Stockholm, Denmark, “, Sweden, paleogenomics, United Kingdom, Ontario

☆ Migration of Alaska’s earliest people linked to woolly mammoth’s movements
▼ + stars: | 2024-01-18 | by ( Jenna Schnuer | ) edition.cnn.com time to read: +6 min

The tusk belonged to a woolly mammoth later named Élmayųujey’eh or, for short, Elma. Karen Spaleta, one of the new study's coauthors, takes a sample from a mammoth tusk found at Alaska's Swan Point archaeological site. Woolly mammoth tusks grew at a consistent daily rate, with the earliest days of the animal’s life recorded in the tip of the tusks. “The US Geological Survey has done a pretty darn good job mapping rocks in Alaska,” Rowe said. Changing the picture of hunter-gatherersThe new evidence advances more than an understanding of the early relationship between woolly mammoths and humans.

Persons: Audrey Rowe, Matthew Wooller, Wooller, Karen Spaleta, Rowe, ” Rowe, “, ” Wooller, ”, Love Dalén, Dalén, ” Dalén, Julius Csotonyi, Hunter, Jenna Schnuer Organizations: CNN, University of Alaska, university’s College of Fisheries, Ocean Sciences, Geological Survey, Palaeogenetics Locations: Alaska, Canada, United States, Elma, University of Alaska Fairbanks, Swan, Stockholm, Sweden, Anchorage , Alaska

☆ In a first, RNA is recovered from extinct Tasmanian tiger
▼ + stars: | 2023-09-19 | by ( Will Dunham | ) www.reuters.com time to read: +4 min

But this study marked the first time that RNA - much less stable than DNA - has been recovered from an extinct species. While not the focus of this research, the ability to extract, sequence and analyze old RNA could boost efforts by other scientists toward recreating extinct species. The Tasmanian tiger resembled a wolf, aside from the tiger-like stripes on its back. The last-known Tasmanian tiger succumbed in a Tasmanian zoo in 1936. Private "de-extinction" initiatives have been launched aimed at resurrecting certain extinct species such as the Tasmanian tiger, dodo or woolly mammoth.

Persons: Emilio Marmol Sanchez, Handout, bioinformatician Emilio Mármol Sánchez, Marc Friedländer, Love, Mármol, Will Dunham, Rosalba O'Brien Organizations: Swedish Museum of, REUTERS Acquire, Tasmanian, Palaeogenetics, Genome Research, Stockholm University, SciLifeLab, Thomson Locations: Stockholm, SciLifeLab, Sweden, Australia, Tasmania, Tasmanian, Washington

☆ The 'mammoth meatball' grown in a lab probably doesn't taste like woolly mammoth at all
▼ + stars: | 2023-04-11 | by ( Morgan Mcfall-Johnsen | Kelsey Vlamis | ) www.businessinsider.com time to read: +7 min

It probably doesn't taste like woolly mammoth, a meat specialist and mammoth DNA researcher said. The Belgian startup Paleo says it added woolly mammoth myoglobin to a plant-based burger. The mammoth meatball doesn't have either of those elements from woolly mammoth. Mammoth myoglobin doesn't necessarily bring mammoth flavorThough he didn't taste it, Ryall said everyone could smell the meatball while it was cooking. So why make a mammoth meatball that doesn't taste like mammoth?

☆ Small ears, frizzy hair and dry ear wax - the genetics of mammoths
▼ + stars: | 2023-04-07 | by ( Will Dunham | ) www.reuters.com time to read: +4 min

Researchers on Friday said they had analyzed the genomes of 23 woolly mammoths - including 16 newly sequenced ones - based on remains preserved in Siberian permafrost. "We find that woolly mammoths had molecular adaptations in genes related to coping with cold Arctic environments, such as thick fur, fat storage and metabolism, and thermal sensation, among others," Díez-del-Molino added. Woolly mammoths were about the size of modern African elephants, around 13 feet (4 meters) tall, but had much smaller ears to guard against losing body heat from a larger ear surface. One of them in humans is associated with Uncombable Hair Syndrome, a condition characterized by dry and frizzy hair that cannot be combed flat. The study helped clarify variable shades of mammoth hair color - brownish with a touch of red.

☆ Oldest DNA reveals life in Greenland 2 million years ago
▼ + stars: | 2022-12-07 | by ( Associated Press | ) www.nbcnews.com time to read: +5 min

NEW YORK — Scientists discovered the oldest known DNA and used it to reveal what life was like 2 million years ago in the northern tip of Greenland. With animal fossils hard to come by, the researchers extracted environmental DNA, also known as eDNA, from soil samples. Studying really old DNA can be a challenge because the genetic material breaks down over time, leaving scientists with only tiny fragments. In their study, published Wednesday in the journal Nature, they compared the DNA to that of different species, looking for matches. He worked on the study that previously held the “oldest DNA” record, from a mammoth tooth around a million years old.

☆ Oldest DNA sheds light on a 2 million-year-old ecosystem that has no modern parallel
▼ + stars: | 2022-12-07 | by ( Katie Hunt | ) edition.cnn.com time to read: +6 min

CNN —A core of ice age sediment from northern Greenland has yielded the world’s oldest sequences of DNA. They then compared the DNA fragments with existing libraries of DNA collected from both extinct and living animals, plants and microorganisms. It was super exciting when we recovered the DNA (to see) that very, very different ecosystem. They found no DNA from carnivores but believe predators — such as bears, wolves or even saber-toothed tigers — must have been present in the ecosystem. Further study of environmental DNA from this time period could help scientists understand how various organisms might adapt to climate change.

Search resuls for: "Love Dalén"

10 mentions found