理学 >>> 数学 信息科学与系统科学 物理学 化学 天文学 地球科学总论 大气科学 地球物理学 地理学 地质学 水文学 海洋科学 生物学 科学技术史
搜索结果: 1-7 共查到理学 Snakes相关记录7条 . 查询时间(0.062 秒)
The curious case of the disappearing snakes(图)     curious case  disappearing snakes       font style='font-size:12px;'> 2020/2/20
A new National Science Foundation-funded study sounds alarm bells about the biodiversity crisis and declining wildlife populations around the world. The results are published in the journal&...
Deadly Fungus May Be Infecting Snakes Worldwide(图)     Deadly Fungus  Infecting  Snakes Worldwide       font style='font-size:12px;'> 2018/1/10
A new study warns that a potentially deadly disease caused by the fungus Ophidiomyces ophidiodiicola, which already affects several species of snakes in the United States, can strike snake populations...
Why Are There No Sea Snakes In The Atlantic?(图)     No Sea Snakes  The Atlantic       font style='font-size:12px;'> 2017/12/18
Sea snakes are an evolutionary success story. With about 70 species, they’re the most diverse reptile group in the ocean, outnumbering sea turtle species 10-to-1.They sport a range of physical adaptat...
Stressed snakes strike first     snakes  strike  first       font style='font-size:12px;'> 2017/1/9
Whether a wild cottonmouth snake will attempt to strike in an encounter depends on its baseline stress level, according to a team of scientists led by undergraduate researcher Mark Herr."Most people t...
Skeleton study sheds new light on how snakes evolved     Skeleton  new light  snakes evolved       font style='font-size:12px;'> 2015/1/8
Snakes may not have shoulders, but their bodies aren't as simple as commonly thought, according to a new study that could change how scientists think snakes evolved.Paleobiologists Jason Head of the U...
Enumeration of snakes and cycle-alternating permutations     snakes  cycle-alternating permutations       font style='font-size:12px;'> 2010/11/9
Springer numbers are an analog of Euler numbers for the group of signed permutations. Arnol'd showed that they count some objects called snakes, that generalize alternating permutations. Hoffman estab...
期刊信息 篇名 The evolutionary relationships of Colubrid snakes suggested by the sequence of Cyt b gene fragments 语种 英文 撰写或编译 撰写 作者 Wang YQ,Zhou KY,Xu LS,Yang G and Xu GJ 第一作者单位 Nanjing Normal University, C...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...