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Sep 23, 2018

Dickinsonia Researchers found specimens of the creature, known as Dickinsonia, that was so well preserved they still contained molecules of cholesterol. This fat is a hallmark of animal life, the team reports in the journal Science. Dickinsonia belongs to a group of life forms known as the Ediacaran biota. They were the first complex multi-cellular organisms to appear on Earth. But they have been extremely difficult to classify, and their position on the tree of life has been one of the greatest mysteries in palaeontology. Different teams of scientists have variously classified them as lichens, fungi, protozoans, evolutionary dead-ends and even as an intermediate stage between plants and animals. The new analysis of a specimen found in north-west Russia places Dickinsonia firmly within the animal kingdom. Image caption The fossils were unearthed at Zimnie Gory in the White Sea area of north-west Russia Image caption ANU researcher Ilya Bobrovskiy found specimens of Dickinsonia and a related organism called Andiva in the rocks "The fossil fat molecules that we've found prove that animals were large and abundant 558 million years ago, millions of years earlier than previously thought," said co-author Jochen Brocks, an associate professor at the Australian National University (ANU) in Canberra. "Scientists have been fighting for more than 75 years over what Dickinsonia and other bizarre fossils of the Ediacaran Biota were," he explained, adding: "The fossil fat now confirms Dickinsonia as the oldest known animal fossil, solving a decades-old mystery that has been the Holy Grail of palaeontology." The Ediacaran biota appeared around 600 million years ago, and flourished for tens of millions of years before the event called the Cambrian explosion.

Tesla's Model 3 earns a five-star safety rating. Here's what it means Andrew Gentleman, 12, of St. Louis checks out the interior of a Model 3 at a Tesla showroom in Century City last January. (Allen J. Schaben / Los Angeles Times) A five-star safety rating for the Tesla Model 3 from the National Highway and Safety Administration was a welcome bit of good news for the automaker. In overall crash safety, the agency put the Model 3 on par with compact luxury sedans from BMW, Audi, Mercedes-Benz and others, all of which also received five-star overall ratings. Tesla Chief Executive Elon Musk was retweeting the news Thursday morning. Production problems have been followed by delivery problems and widespread reports of quality issues , ranging from mismatched body panels to dead batteries. The company has also been under scrutiny for accidents that involve Tesla’s Autopilot driver assistance features.

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A landmark 2016 law praised as an 'unbelievably powerful tool' against gun violence remains scarcely used

A landmark 2016 law praised as an The responding officer contacted a court commissioner, who issued an emergency order to remove the caller’s guns — two pistols, a pump shotgun and a semiautomatic rifle — as well as several boxes of ammunition. At a hearing several weeks later, a judge made a more permanent order, according to court records: The man couldn’t have guns for a year. In another case, a man called the state’s Bureau of Firearms line and left several strange voicemails in which he switched between a whisper, a deep voice and laughter, according to the petition filed by a special agent. In one message, records show, he mentioned then-Atty. Gen. Kamala Harris. “You better watch your backside,” the caller warned. A special agent ran the man’s name through a state database, which revealed that he owned at least three guns, records show. A few days later, after a judge granted a temporary order, agents showed up at the man’s Westchester home and seized more than 25 guns and dozens of high-capacity magazines, records show. The man ultimately reached a plea deal with the Department of Justice and agreed to sell his firearms, attend weekly Alcoholics Anonymous meetings and not have guns for three years, court records show. In another case, a detective sought an order against Lisa Simpson, whose 18-year-old son, Richard Risher, was shot and killed by Los Angeles police in Watts in the summer of 2016.

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