Marcus Gilbert 77 of the Pittsburgh Steelers is h

first_imgMarcus Gilbert #77 of the Pittsburgh Steelers is helped off the field by trainers against the Jacksonville Jaguars during the first half of the AFC Divisional Playoff game at Heinz Field on January 14, 2018 in Pittsburgh, Pennsylvania. (Photo by Kevin C. Cox/Getty Images) Related LinksCardinals’ Bidwill, Keim and Kingsbury not at Murray’s pro dayKyler Murray skips measurement, throws at pro dayArizona Sports NFL Mock Draft Tracker: Who’s next for the Cards at No. 1?In 2017, Gilbert was suspended four games by the NFL for violating the league’s performance-enhancing substances policy.In eight NFL seasons, Gilbert has played 16 games only twice: 2013 and 2015. The Arizona Cardinals on Wednesday officially traded a sixth-round pick in 2019 to the Pittsburgh Steelers in exchange for offensive tackle Marcus Gilbert.Arizona also announced the release of veteran tight end Jermaine Gresham.The report on Friday first reported by ESPN’s Adam Schefter was confirmed by 98.7 FM Arizona’s Sports Station’s John Gambadoro, who added that Denver was also interested.Gilbert started five games for the Steelers last year but missed time due to a knee injury, and played only seven games the year prior. He has started 87 of the 88 games he’s played in his career, all with Pittsburgh, after being drafted in the second round (63rd overall) out of Florida in 2011. Derrick Hall satisfied with D-backs’ buying and selling 47 Comments   Share   Grace expects Greinke trade to have emotional impactcenter_img Top Stories Former Cardinals kicker Phil Dawson retires The 5: Takeaways from the Coyotes’ introduction of Alex Meruelo Next chapter 🙏🏾😎— Marcus Gilbert (@MarcusGilbert88) March 8, 2019His contract carries a $4.915 million cap hit before he becomes a free agent after the 2019 season.He joins an offensive line that was one of the worst in the NFL in 2018, and included D.J. Humphries, John Wetzel, Korey Cunningham, Andre Smith and Blaine Clausell at the tackle spot. Only one starter on the offensive line played all 16 games in 2018 for the Cardinals, and that was center Mason Cole. The line was tied for fourth-most QB hits in the league with 109.Gambadoro also reported that offensive lineman Joe Barksdale will not be back with the Cardinals in 2019 as he becomes a free agent.last_img read more

Neandertals made their own jewelry new method confirms

first_img For the first time, researchers directly dated Neandertal bones from the Grotte du Renne cave in France. Matthew Collins, a bioarchaeologist at the University of York in the United Kingdom, has been an early pioneer in the study of ancient proteins, and decided to turn the new method on some of the unidentified bones associated with the Grotte du Renne cultural artifacts. But the fragments were so small that he couldn’t even tell what species they came from. DNA, increasingly used to identify fossils, was scarce in the fragments, so Collins and his colleagues turned to proteins. Email The “necklaces” are tiny: beads of animal teeth, shells, and ivory no more than a centimeter long. But they provoked an outsized debate that has raged for decades. Found in the Grotte du Renne cave at Arcy-sur-Cure in central France, they accompanied delicate bone tools and were found in the same layers as fossils from Neandertals—our archaic cousins. Some archaeologists credited the artifacts—the so-called Châtelperronian culture—to Neandertals. But others argued that Neandertals were incapable of the kind of symbolic expression reflected in the jewelry and insisted that modern humans must have been the creators.Now, a study uses a new method that relies on ancient proteins to identify and directly date Neandertal bone fragments from Grotte du Renne and finds that the connection between the archaic humans and the artifacts is real. Ross Macphee, a paleontologist at the American Museum of Natural History in New York City, who has worked with ancient proteins in other studies, calls it “a landmark study” in the burgeoning field of paleoproteomics. And others say it shores up the picture of Neandertals as smart, symbolic humans.Unearthed between 1949 and 1963, the controversial artifacts were made during a transitional time, when modern humans were sweeping across Europe and the Neandertals who had lived there for hundreds of thousands of years were dying out. Although the artifacts were reportedly from the same layer as Neandertal fossils, many researchers suspected that artifacts and bones from different layers got mixed up in the investigation, as dating expert Thomas Higham of the University of Oxford in the United Kingdom suggested in 2010. Sign up for our daily newsletter Get more great content like this delivered right to you! Country M. Hardy Click to view the privacy policy. Required fields are indicated by an asterisk (*) Country * Afghanistan Aland Islands Albania Algeria Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia, Plurinational State of Bonaire, Sint Eustatius and Saba Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Darussalam Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Congo, the Democratic Republic of the Cook Islands Costa Rica Cote d’Ivoire Croatia Cuba Curaçao Cyprus Czech Republic Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Ethiopia Falkland Islands (Malvinas) Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard Island and McDonald Islands Holy See (Vatican City State) Honduras Hungary Iceland India Indonesia Iran, Islamic Republic of Iraq Ireland Isle of Man Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Korea, Democratic People’s Republic of Korea, Republic of Kuwait Kyrgyzstan Lao People’s Democratic Republic Latvia Lebanon Lesotho Liberia Libyan Arab Jamahiriya Liechtenstein Lithuania Luxembourg Macao Macedonia, the former Yugoslav Republic of Madagascar Malawi Malaysia Maldives Mali Malta Martinique Mauritania Mauritius Mayotte Mexico Moldova, Republic of Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island Norway Oman Pakistan Palestine Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Qatar Reunion Romania Russian Federation Rwanda Saint Barthélemy Saint Helena, Ascension and Tristan da Cunha Saint Kitts and Nevis Saint Lucia Saint Martin (French part) Saint Pierre and Miquelon Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Sint Maarten (Dutch part) Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands South Sudan Spain Sri Lanka Sudan Suriname Svalbard and Jan Mayen Swaziland Sweden Switzerland Syrian Arab Republic Taiwan Tajikistan Tanzania, United Republic of Thailand Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom United States Uruguay Uzbekistan Vanuatu Venezuela, Bolivarian Republic of Vietnam Virgin Islands, British Wallis and Futuna Western Sahara Yemen Zambia Zimbabwe When the protein analysis came back, it left little room for doubt: The bone was human. But was it an archaic human, like a Neandertal, or a modern human? Which species was really associated with the artifacts? Had the earlier discovery of Neandertal fossils in the Châtelperronian layer been an illusion based on sloppy digging and compromised evidence?To answer that question, Collins and his team compared the chemical composition of the collagen in the fragments with the collagen produced by modern and archaic humans. Modern human collagen contains high amounts of an amino acid called aspartic acid, but the ancient collagen was once rich in a different amino acid, asparagine—and previously sequenced Neandertal DNA includes a collagen-producing gene that likely resulted in an asparagine-rich version. To double-check their finding, they sequenced the fragments’ mitochondrial DNA as well, finding that the bones came from individuals with Neandertal ancestry on their mothers’ side. “[The bone fragments] weren’t useful 10 years ago, but now we realize they’re a great molecular record,” Collins says.In addition to being archaic, the collagen was a form found only in bone that is still growing. The bone fragment also contained a high proportion of certain nitrogen isotopes, which is associated with children who are breast-feeding. Those two lines of evidences led the researchers to conclude that at least some of the bone fragments likely came from the skull of a Neandertal infant. Direct radiocarbon dating of the sample shows that it’s about 42,000 years old—just when the Châtelperronian beads and tools were made. The team published its results online today in the Proceedings of the National Academy of Sciences.“You can invent all sorts of stories. But the simplest explanation is that this assemblage was made at least in part by Neandertals,” says co-author Jean-Jacques Hublin, a paeloanthropologist at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. He believes that Neandertals likely picked up the ideas behind the tools and the ornaments from their new modern human neighbors but fashioned the artifacts themselves. Chris Stringer, an anthropologist at the Natural History Museum in London, wonders whether modern humans could have had a genetic influence on the last Neandertals as well. Because scientists know Neandertals and modern humans mated with each other, “is it possible that the ‘modern’ DNA these late Neandertal groups picked up included genes for enhanced cognitive abilities?” he wonders. But other researchers who have long argued that Neandertals had sophisticated cognitive abilities, including João Zilhão at the University of Barcelona in Spain, doubt that they had any help, genetic or otherwise, from the new arrivals.Higham, who led the study that cast doubt on the integrity of the Grotte du Renne layers, is convinced by the new work. “This paper is the first time that a Neandertal bone has been dated from this key site, and it … provides additional data to support a Châtelperronian-Neandertal link,” he says. “I think it is quite possible that Neandertals were capable of making and using personal ornaments.”last_img read more