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University of Michigan slithers toward history with acquisition of snake specimens_我的网站

A |     酷炫冰场          欢乐无限                    冬天的游戏是孩子们童年的快乐音符，冰与雪的邂逅，是大自然最神秘的馈赠，更是孩子们嬉戏的“伙伴”。快来看看新东萌娃们在冰场上的那些趣事儿吧!                    溜冰场的那些事                    随着天气越来越冷，幼儿园的自制冰场终于结上了厚厚的冰。    ANN ARBOR, Mich. -- Greg Schneider scans rows upon rows of liquid-filled glass jars containing coiled snake specimens, just a portion of the University of Michigan Museum of Zoology's reptile and amphibian collection believed to be the largest held by any research institution in the U.S. thanks to a recent donation. The museum this fall acquired tens of thousands of reptile and amphibian specimens from Oregon State University, many of which are snakes. The development places the university in a unique position, according to Schneider, the research museum collections manager for the museum's division of reptiles and amphibians.“I’m fairly confident we’ll have the largest snake collection in the world,” he said. The extensive new additions also will allow scientists to conduct new snake and amphibian research, perhaps looking at trait evolution in mothers and their offspring. Numerous studies have been conducted in recent years about declining amphibian and reptile populations, Schneider said, noting they “are very good biological indicators of the health of the environment and ecosystems,” especially the amphibians.“Amphibians, unlike people, breathe at least partly through their skin, which is constantly exposed to everything in their environment,” he said, adding that “the worldwide occurrences of amphibian declines and deformities could be an early warning that some of our ecosystems, even seemingly pristine ones, are seriously out of balance.”Boxes containing water snakes, garter snakes, woodland salamanders, dusky salamanders and other species arrived last month. They were euthanized and ultimately placed in a solution that is 75% ethanol. The donations represent the lifetime work of two retired Oregon State professors, Lynne Houck and Stevan Arnold, who received a doctorate from Michigan in 1972.Schneider has yet to complete the painstaking process of cataloging the new material, but estimates it contains around 30,000 snakes. He said that would give Michigan a total of between 65,000 to 70,000 of the slithering vertebrates, surpassing collections at the Smithsonian in Washington, the American Museum of Natural History in New York and the University of Kansas. Some of the specimens housed at the museum prior to the Oregon State donation predate the Civil War.The "largest snake collection" title would be nice, but Schneider said the true promise of a big collection is new research opportunities. “The more stuff you have and the more associated materials that you have, the more things you can do,” Schneider said.The newly acquired Oregon State collection also includes about 30,000 associated frozen tissue samples. Along with advances in molecular genetics and more sophisticated DNA analyses, the samples will allow research that could result in a better understanding of inheritance, evolutionary relationships and “has huge applications in medicine,” said Hernán López-Fernández, an associate professor in Michigan's Department of Ecology and Evolutionary Biology.A number of the newly acquired jars contain both snakes and litters of their newborns, which Michigan professor Dan Rabosky said “is very, very rare for museum collections and is incredibly powerful for research, because it lets researchers ask questions about genetics that would otherwise not be possible.” Despite the daunting task of organizing the new collection, Schneider said he and his colleagues have noticed renewed excitement in team members who staff the university’s 153,375-square-foot (14,249-square-meter) Research Museums Center, where the specimens are housed.“Since these specimens arrived, people are very, very, very enthusiastic and supportive,” Schneider said. “And excited about the kinds of research that are going to be done with these collections.”。玩什么？怎么玩？孩子们议论纷纷……                    想想                    我想在上面玩冰球          我想和我的好朋友一起玩          言言                    硕硕                    我想在冰上玩儿拔河          我想坐在轮胎上面，让别人推我          泽泽                    小朋友们开心地诉说着自己的想法。迫不及待的想要去冰场玩上一圈。                             热身运动 保证安全                    教师带领小朋友们活动身体各部位，慢跑热身，保证滑冰活动时的安全。                                                           花样玩冰 趣享童年                              1          炫酷冰车          滑上我心爱的小冰车，快乐不堵车，看我来个大漂移……孩子们潇洒地滑着，分外畅快。                                       滑冰啦          2          冰球乐翻天          快乐的冰球游戏开始啦，小朋友们像敏捷的小猎豹，在冰面上飞驰，手中的球棍仿佛是魔法棒，精准地控制着冰球。别看他们年纪小，团队协作的意识可一点也不含糊呢。                                                 3          冰上拔河          冰上拔河可不是一件容易的事儿，小朋友们分为两队，咬紧牙关，拼命往后拉。他们的脸冻得通红，但内心的热情却如同火焰般燃烧。                                       4          冰上保龄球          冰上保龄球大战开始啦！瞧，小朋友们蓄势待发，都想争夺第一呢！                                                            冰、雪是大自然送给孩子们冬天最好的礼物，是孩子们的成长源泉，冰雪带给孩子们的远远不止快乐，这个冬天才刚刚开始，我们与冰雪的约会未完待续，让我们一起期待吧……                    -END-                              ~欢迎关注~          大东区教育局二0五幼儿园新东园区          地址：沈阳市大东区新东三街30号          联系电话：024—82889109。

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