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Params: post, 320581, a:16:{i:0;s:138:"据外媒报道,如果《侏罗纪公园》系列电影可信的话,那么霸王龙花费了大量时间来快速追捕它的猎物。";i:1;a:4:{s:3:"tag";s:1:"b";s:6:"option";N;s:8:"original";a:2:{i:0;s:3:"[B]";i:1;s:4:"[/B]";}s:8:"children";a:1:{i:0;s:111:"然而根据一项新的研究显示,这种恐龙的腿可能更多的是为耐力而不是速度设计的。";}}i:2;s:130:"一组来自美国和加拿大的研究人员首先收集了70多种兽脚亚目恐龙的体重、四肢比例和步态数据。
";i:3;a:4:{s:3:"tag";s:4:"left";s:6:"option";N;s:8:"original";a:2:{i:0;s:6:"[LEFT]";i:1;s:7:"[/LEFT]";}s:8:"children";a:1:{i:0;s:96:"兽脚亚目恐龙是一群长腿、双足、中空骨骼的恐龙,霸王龙也属于其中。";}}i:4;s:2:"
";i:5;a:4:{s:3:"tag";s:4:"left";s:6:"option";N;s:8:"original";a:2:{i:0;s:6:"[LEFT]";i:1;s:7:"[/LEFT]";}s:8:"children";a:1:{i:0;s:264:"科学家们通过利用各种各样的方法开始估算出每个物种的最高奔跑速度以及在行走时消耗的能量。研究发现,对于较小到中等体型的兽脚亚目恐龙来说,腿越长跑得越快。这一发现跟先前的研究一致。";}}i:6;s:2:"
";i:7;a:4:{s:3:"tag";s:4:"left";s:6:"option";N;s:8:"original";a:2:{i:0;s:6:"[LEFT]";i:1;s:7:"[/LEFT]";}s:8:"children";a:1:{i:0;s:241:"然而对于像霸王龙这种体重超过1000公斤的大型恐龙来说,庞大的体型会限制它们的最高速度。以这些恐龙为例,研究人员确定,这些动物的长腿更有可能能在行走时减少能量的消耗。";}}i:8;s:2:"
";i:9;a:4:{s:3:"tag";s:6:"center";s:6:"option";N;s:8:"original";a:2:{i:0;s:8:"[CENTER]";i:1;s:9:"[/CENTER]";}s:8:"children";a:1:{i:0;a:4:{s:3:"tag";s:3:"url";s:6:"option";s:66:"https://static.cnbetacdn.com/article/2020/0515/15a3bb83642070d.png";s:8:"original";a:2:{i:0;s:74:"[URL='https://static.cnbetacdn.com/article/2020/0515/15a3bb83642070d.png']";i:1;s:6:"[/URL]";}s:8:"children";a:1:{i:0;a:4:{s:3:"tag";s:3:"img";s:6:"option";N;s:8:"original";a:2:{i:0;s:5:"[IMG]";i:1;s:6:"[/IMG]";}s:8:"children";a:1:{i:0;s:96:"https://rdimg.com/proxy/https://static.cnbetacdn.com/thumb/article/2020/0515/15a3bb83642070d.png";}}}}}}i:10;s:2:"
";i:11;a:4:{s:3:"tag";s:4:"left";s:6:"option";N;s:8:"original";a:2:{i:0;s:6:"[LEFT]";i:1;s:7:"[/LEFT]";}s:8:"children";a:1:{i:0;s:182:"这样的猜想是有道理的,为了找到更大、行动更慢的猎物,霸王龙长途需要有效地进行长距离旅行--并且它们不需要逃避捕食者因为没有。";}}i:12;s:2:"
";i:13;a:4:{s:3:"tag";s:4:"left";s:6:"option";N;s:8:"original";a:2:{i:0;s:6:"[LEFT]";i:1;s:7:"[/LEFT]";}s:8:"children";a:1:{i:0;s:393:"马里兰大学古生物学家Thomas Holtz表示:“这种假设倾向于认为,具有奔跑适应能力的动物比如长腿动物能适应更高的最高速度,但这篇论文表明,这其中不仅仅涉及到最高速度。当你是一个更大体型的动物时,这些适应性也可能是为了耐力和效率。它可能是一名马拉松运动员而不是短跑运动员。”";}}i:14;s:2:"
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