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巴雷拉:我们确实很疲劳但我们不找借口,要努力做到最好_我的网站

死亡飞车

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Photo: Screenshot from peerj.com
    Photo: Screenshot from peerj.com
Chinese scientists studying a 244-million-year-old ichthyosaur Mixosaurus fossil from Southwest China’s Guizhou Province found at least 11 embryos inside the specimen. The discovery sets a new record for the highest number of embryos found in ichthyosaur lineages and reveals that high reproductive capacity in ichthyosaurs emerged earlier than previously believed, chinanews.com reported on Wednesday. 
Ichthyosaur was among the most successful Mesozoic marine reptiles, and its reproductive strategy was considered crucial to their adaptation to ocean environments. Its reproductive ability before extinction has long intrigued paleontologists.
A joint research team from the Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences (CAS), and the Zhejiang Museum of Natural History, has published the study on the ichthyosaur paleontology in the international journal PeerJ. 
According to Wang Wei, the paper’s corresponding author and an associate professor at the institute, embryo-preserving ichthyosaur fossils have been found across 11 genera from the Early Triassic to the Early Cretaceous. 
However, for ichthyosaur groups that diverged in the Early Triassic, embryo-bearing fossils known to scientists remain scarce, and knowledge about the number of offspring they carried is especially limited. Previous discoveries of pregnant specimens, such as Chaohusaurus and Mixosaurus, contained no more than three embryos, suggesting limited early reproductive capacity among early ichthyosaurs.
According to Gu Shengxiao, the paper’s first author and a researcher at the Zhejiang Museum of Natural History, the study examined an almost complete adult Mixosaurus panxianensis fossil from Guizhou’s Middle Triassic strata, dating back about 244 million years. The specimen measures 112 centimeters long, including a skull length of 22 centimeters, with only the tail tip missing. 
The researchers identified 11 fetal ichthyosaur skeletons with skulls inside the adult specimen’s abdomen, confirming they were embryos rather than cannibalized prey based on their position and morphology. There are also fossil pieces outside the belly of the adult, which could belong to the 11 or represent other embryos. 
All embryos in the Mixosaurus panxianensis fossil were at a similar late developmental stage, suggesting the mother died shortly before giving birth, according to the researchers.
The Mixosaurus panxianensis fossil containing at least 11 embryos sets a record for Triassic ichthyosaurs and all known ichthyosaur species. The researchers believe this indicates that Mixosaurus may have adopted a reproductive strategy of producing large numbers of offspring in a single birth. This exceptionally high reproductive capacity may have provided them with a survival advantage. 
Among Triassic ichthyosaurs and all known ichthyosaur groups, Mixosaurus is the genus with the largest number of fossil specimens and is also one of the most widely distributed ichthyosaurs. 
The researchers said the multi-embryo Mixosaurus panxianensis fossil may represent an extreme case, but it confirms the species’ ability to produce large numbers of offspring, potentially contributing to its dominance among contemporaneous marine reptiles. 
The study offers the first fossil evidence of high fertility in Triassic ichthyosaurs. Future research will examine other embryo-bearing Triassic ichthyosaurs to determine whether a multiple-offspring reproductive strategy was common in early ichthyosaur evolution and what factors drove this trait, Wang said. 
Global Times
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北京时间4月21日,在国际米兰遭遇对手的读秒绝杀,客场0-1负于博洛尼亚之后,巴雷拉出席了赛后的新闻发布会。


“我认为这样的结果令人痛苦。

二 | 比赛一直处于平衡的状态,但被一个我们本应该处理得更好的事件决定了比赛的结果。

三 | 在禁区内7对3的情况下,我们不能允许自己丢球。这赛季我们付出了很多努力才走到最后的这个阶段,我们正在努力争夺三项赛事的三座奖杯。我们必须竭尽全力,因为疲劳感确实是存在的。接下来还有比赛要踢,从现在到赛季结束,我们努力做到最好。”巴雷拉说道。

“国际米兰的武器?我们觉得自己很强大,我们在联赛中已经证明了这一点。

四 | 我们也犯过错,丢掉了一些积分,这从来都不是好事。足球比赛就是这样。你必须接受它所给予的一切,这意味着我们理应与那不勒斯同分。我们会尽最大努力。现在我们确实感到疲惫,我们已经付出了很多努力,这个赛季消耗很大。我从不喜欢找借口,这只是一个因素,但不是借口。在最后时刻丢球是一个问题,我们必须解决,否则我们就无法实现我们的目标。我们仍在为一切而战,命运掌握在我们自己手中,也在另一支球队手中,这会让我们踢出一个更有竞争力的赛季。这将是艰难的,但我们赢得了争冠的机会,我们必须享受它。

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Published on:20:41:57


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