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Scientists Unveil Mystery Surrounding 500 Million-Year-Old Critter Without Anus_我的网站

A |     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.。    

根据英国媒体《每日邮报》报道，利物浦队长范戴克透露，利物浦球员将聚集在一起观看阿森纳与水晶宫的比赛，期待能够提前庆祝夺冠。

利物浦在周日凭借阿诺德的进球以1-0战胜莱斯特城，继续保持对阿森纳13分的领先优势。他们现在距离夺得他们的第二个英超冠军仅一步之遥，下周日他们将在安菲尔德迎战托特纳姆热刺。如果先前的比赛中阿森纳在酋长球场对阵水晶宫的比赛中失利，利物浦就能赢得联赛冠军。

范戴克表示他和他的队友们将组织一个聚会来观看这场比赛——但他预计派对可能会稍微推迟一些。他说道：“我们可能会（组织聚会）。我预计阿森纳会在主场获胜，但如果没赢，那么对我们来说一起庆祝会很棒。不过具体形式如何，我们将在接下来的几天内讨论。”

2020年，利物浦球员在曼城输给切尔西后也进行了类似的聚会庆祝夺冠。

B |

范戴克还表示，利物浦在积分榜上如此领先是他“最疯狂的梦想”也无法企及的。他说：“我在经历了一届令人失望的欧洲杯后归来，只休息了两个半星期，然后直接投入没有季前赛的情况下开始新赛季，所以一切都显得有些不确定。

C | 但自从第一天我们开始训练，信心逐渐增强，我们看到了自己的能力以及在新体制下我们试图实现的目标。”

“一致性是最重要的。我认为从一开始就找到了它，而且我认为这也是最难获得并保持的东西，但我们做得很好。我是否预料到我们现在会处于这个位置？没有。这并不是因为我对小伙子们没有信心，而是因为在这个赛季的阶段能领先13分，我觉得这甚至超出了我的最疯狂梦想。”

“我们付出了巨大的努力才走到今天这一步，现在我们有机会完成任务。

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Published on:04:18:10