武清区龙济医院网上约号(天津专业男科医院龙济男科排名) (今日更新中)

The remains of an ancient ape found in a Bavarian clay pit suggest that humans’ ancestors began standing upright millions of years earlier than previously thought, scientists said Wednesday.An international team of researchers says the fossilized partial skeleton of a male ape that lived almost 12 million years ago in the humid forests of what is now southern Germany bears a striking resemblance to modern human bones. In a paper published by the journal Nature, they concluded that the previously unknown species — named Danuvius guggenmosi — could walk on two legs but also climb like an ape.The findings “raise fundamental questions about our previous understanding of the evolution of the great apes and humans,” said Madelaine Boehme of the University of Tuebingen, Germany, who led the research.The question of when apes evolved bipedal motion has fascinated scientists since Charles Darwin first argued that they were the ancestors of humans. Previous fossil records of apes with an upright gait — found in Crete and Kenya — dated only as far back as 6 million years ago.Boehme, along with researchers from Bulgaria, Germany, Canada and the United States, examined more than 15,000 bones recovered from a trove of archaeological remains known as the Hammerschmiede, or Hammer Smithy, about 70 kilometers (44 miles) west of the Germany city of Munich.Among the remains they were able to piece together were primate fossils belonging to four individuals that lived 11.62 million years ago. The most complete, an adult male, likely stood about 1 meter (3 feet, 4 inches) tall, weighed 31 kilograms (68 pounds) and looked similar to modern-day bonobos, a species of chimpanzee.“It was astonishing for us to realize how similar certain bones are to humans, as opposed to great apes,” Boehme said.Thanks to several well-preserved vertebra, limb, finger and toe bones, the scientists were able to reconstruct how Danuvius moved, concluding that while it would have been able to hang from branches by his arms, it could also straighten its legs to walk upright.“This changes our view of early human evolution, which is that it all happened in Africa,” Boehme told The Associated Press in an interview.Like humans, Danuvius had an S-shaped spine to hold its body upright while standing. Unlike humans, though, it had a powerful, opposable big toe that would have allowed it to grab branches with its foot and safely walk through the treetops.Fred Spoor, a paleontologist at the Natural History Museum in London, called the fossil finds “fantastic” but said they would likely be the subject of much debate, not least because they could challenge many existing ideas about evolution.“I can see that there will be a lot of agonizing and re-analysis of what these fossils mean,” said Spoor, who wasn’t involved in the study. 2833

The U.S. Department of State issued a travel advisory on Monday for those planning trips to South Korea. The advisory is considered a "Level 2" advisory, on a scale from Level 1 to Level 4. A Level 2 advisory encourages travelers to "exercise increased caution" before going to the region."Many cases of COVID-19 have been associated with travel to or from mainland China or close contact with a travel-related case, but sustained community spread has been reported in South Korea," the State Department said. "Sustained community spread means that people in South Korea have been infected with the virus, but how or where they became infected is not known, and the spread is ongoing."The Associated Press has reported a total of 893 cases of coronavirus in South Korea. Last month, the State Department issued a Level 4, or "do not travel" advisory for those making trips to China. 895

The Senate is set to vote Monday on two competing disaster relief bills, neither of which is expected to pass, according to aides in both parties.The first vote, scheduled for 5:30 p.m. ET, is on whether to advance GOP legislation authored by Senate Appropriations Chairman Richard Shelby. It would allocate roughly .5 billion for rebuilding and recovery from natural disasters such as tornadoes, earthquakes, hurricanes and wildfires. The legislation includes 0 million to pay for nutrition assistance for Puerto Rico. If it fails to advance, senators will vote on a disaster relief package passed by the Democratic-controlled House months ago.Democrats oppose the Republican Senate proposal in part, because they argue it does not include enough aid for hurricane-ravaged Puerto Rico. Republicans, meanwhile, have criticized Democrats for their opposition by pointing to the fact that the House-passed legislation does not include relief for recent flooding that has devastated the Midwest.The votes will put both Democrats and Republicans in a position of political peril as opposition to either measure opens up lawmakers to attacks from the opposing party accusing them of putting American citizens at risk by failing to green-light needed disaster relief.Senate Republican leader Mitch McConnell called the House bill a "non-starter" in remarks on the Senate floor on Monday because, he said, it provides "nothing for Midwest flooding."Senate Democratic leader Chuck Schumer attacked the GOP position in advance of the vote Monday."Republican senators are attempting to strip away recovery funds from Puerto Rico and other territories from the disaster package that passed the House," Schumer said on the Senate floor on Monday. The top Senate Democrat described the administration's response to the devastating impact hurricanes have had on Puerto Rico as "cruel" and "nasty," and said, "President Trump tweets while Puerto Rico suffers."President Donald Trump worked to put pressure on Democrats, saying on Twitter that "Democrats should stop fighting" the Republican legislation and claiming that they are "blocking funding and relief for our great farmers and rural America.Democrats, however, have argued that the GOP relief effort provides insufficient funding for Puerto Rico because it fails to include a variety of measures that were part of the roughly .2 billion relief package passed by Democrats who control the House in January. Those measures include state revolving funds that could be used by Puerto Rico to rebuild water systems that have sustained damage as well as a 100% cost share for the Federal Emergency Management Agency that Democrats say would unlock federal aid for Puerto Rico.Senate Democrats must now decide to whether to block the billion-dollar package over their concerns.Partisan tensions over the issue of funding for Puerto Rico became further inflamed last week after the President again 2954

Those wishing to mourn the deaths of NBA legend Kobe Bryant and his daughter Gianna can now enter a lottery to purchase tickets to their public memorial, which will be held Feb. 24 at 10 a.m. PT. From now through Monday night, fans can go to the 258

Thieves steal surgical masks. A clinic sells fake COVID-19 tests. Hate groups encourage sick members to infect law enforcement officers. Imposters pose as public health officials. Con artists peddle fake cures and financial scams.As the 249

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