冰与火之歌

新华社巴黎7月7日电（记者肖亚卓）7日，2022环法自行车赛结束了第六赛段的争夺，来自阿联酋航空车队的夺冠大热门、卫冕冠军波加查在最后的缓坡冲刺中轻松夺冠，拿到赛段冠军的同时也在今年的环法比赛中首度披上黄衫。本赛段从班什出发，终点为隆维，全长220公里，是本届环法最长的一个赛段。

B |     Researchers from China and the UK have solved the mystery surrounding Saccorhytus coronaries – a millimeter-long spiny creature that was found in 2017 and believed to have inhabited oceans 500 million years ago. The veil of mystery over the critter persisted for years, as the scientists could not locate the creature’s anus. Turns out – they should not have even tried.,The critter was originally determined to be a member of a deuterostomes group of animals - the ancestors to the modern vertebrates (including humans). However, scientists' latest research suggests that it actually belongs to another group called ecdysozoans – the predecessors of the modern spiders and various insects. As it turned out, the whole mishap happened over the creature's anus – or rather lack thereof.,Ecdysozoans normally have an anus and hence the critter was initially ruled not to belong to them. But, upon closer discovery using x-rays, scientists saw it resembles ecdysozoans internally more than the ancestors of the vertebrates.,Like them, Saccorhytus has a large mouth and also features tiny holes around it that served as bases for spines that kept the critter anchored in one place. Those holes also served as a source of confusion as they were originally believed to be gills – another mark of the proto-vertebrates.,'Ugliest I've Ever Seen': Fisherman Shares Pic of Mysterious Creature He Found in Australia29 June, 13:17 GMT,As to Saccorhytus' absence of anus, scientists are yet to find out what happened to it. One theory suggests that there was an even earlier representative of ecdysozoans that has not been discovered, but did not have an anus.,Another theory goes that Saccorhytus did not actually need one.,"It could be that it lost it during its own evolution - perhaps it didn't need one because it could just sit in one spot with one opening for everything," Emily Carlisle, one of the researchers, said.。此前排名总成绩第一、珍宝车队的范阿尔特运气不佳，比赛过程中两次出现故障，尽管其早早突围选择单飞，但是在距离终点11公里处被主集团追上。最后的冲刺路段是一个上坡，珍宝车队的罗格利奇率先发动进攻，但波加查很快追上，并在最后300米处开始一马当先，甩开所有对手最终获胜。这也是波加查在今年的环法比赛中拿到的首个赛段冠军。

凭借这一赛段的胜利，波加查在总成绩榜上一举登顶，领先排名第二的英孚教育车队车手鲍里斯4秒。

C | 此前排名第一的范阿尔特虽然总成绩已经落到了10名开外，但是凭借本赛段途中冲刺路段拿到的积分，将象征着最佳冲刺车手的绿衫披在了身上。象征最佳爬坡车手的圆点衫则暂时归属英孚教育车队的尼尔森。8日的第七赛段将是今年环法的第一个山地赛段，从通布兰出发，终点为美少女高地，赛段全长176.3公里。