标签:species 相关文章
I really worry about our oceans. Not many people understand how important the oceans are. Every day we hear stories about the rainforests and the ice caps, but we rarely hear about the oceans. They form most of the Earths surface and most of the worl
Hi, its Kasey-Dee Gardner, in this weekend Why Tell Me Why will answer an interesting viewer question. The viewer wants to know why certain species die after they reproduce. So, we're here to find out the answer. Urn, so there are a bunch of species,
Volcanoes forged the rocky coast of Cabo de Gata in southeast Spain. But the tides blanket it with reef-like structures built by snails. An algine marine biologist Diego Moreno says this sea of life can be deadly. Filth and contaminants accumulate on
Beneath the tourist gondolas on Lake Xochimilco in Mexico lives a creature that resembles a monster. Known as the water monster or Mexican walking fish, the axolotl is type of salamander. The Ambystoma Mexicano, this species, is the axolotl of Xochim
Robyn Williams: Australia has some of the finest living dinosaurs in the world. Yes, I mean birds. Our birds were among the first purveyors of birdsong in ancient history, so the science suggested earlier this year, despite what David Attenborough ha
Passage Two 14. A) It limited their supply of food. B) It made their eggshells too fragile. C) It destroyed many of their nests. D) It killed many baby bald eagles. 15. A) They found ways to speed up the reproduction of bald eagles. B) They developed
Science and technology 科学与技术 Splay-footed, not flat-footed 不是扁平足而是八字足 A new fossil shows that evolution does not always mean change 新发现的化石显示,进化并不总意味着变化 Palaeontology 古生物学 The
Science and Technology Palaeontology Splay-footed, not flat-footed 科技 古生物学 不是扁平足而是八字足 A new fossil shows that evolution does not always mean change 新发现的化石显示,进化并不总意味着变化 WHEN a coela
Science and Technolgy. 科技。 Radiation and evolution. 核辐射与进化。 Surviving fallout. 辐射尘中 幸免于难。 Birds can evolve to cope with the lingering effects of nuclear incidents. 鸟类能够通过进化应对核事故的残余影
五、社会行为类 11 / 99 People's behavior is largely determined by forces not of their own making. 人们的行为多是被外界力量所左右,难以被自己控制。 22 / 122 Claim: The best way to understand the character of a society is
TIANJIN, Dec. 15 (Xinhua) -- More than 200 rare migrating birds have taken up residence at a wetland in north China's Tianjin Municipality despite heavy snow, a rare occurrence for this time of year, according to a local volunteer. The oriental white
Beginners. On the sixth of this month, I took my children to Seattle to go to the Pacific Science Center. We do not go to Seattle very often, so I thought that, now that it is summer, I should make the effort and make the three hour drive over the mo
同样主题,SAT写作题目切进角度相对较浅。 例如,隐私的这个话题,SAT只会问人是否应该保护隐私?而GRE题目则会这样说:某些明星、政客不得不,甚至愿意让公众对他们的隐私感爱好。论述起
Smithsonian Museum opens new window on human origins Rosanne Skirble | Washington, DC 02 April 2010 Photo: Chip Clark, Jim DiLoreto, Don Hurlbert, Smithsonian Institution Five fossil human skulls show how the shape of the face and braincase of early
Since the pre-historic times, man has had an urge to satisfy his needs. Be it hunger, shelter or search for a mate, he has always manipulated the circumstances to the best of his advantages. Probably this might be the reason why we human are the most
Ornithological trends 英国鸟类迁徙趋势 This bird has flown 有所改变 Why some species are thriving outside southern England 为什么英格兰南部有些物种开始兴盛? WHEN people talk about a north-south divide in Britain they are
Only about one bone in a billion, it is thought, ever becomes fossilized. 据认为,在10亿根骨头当中,只有大约l根能变成化石。 If that is so, it means that the complete fossil legacy of all the Americans alive todaythat's 270 mill
Much too much! An obsession far too great! I long to be a better man, but this world's too hard to take With everything considered, man, we all are on our own It's the origin of species - It's the love we'll never know Right versus wrong, an objectiv
发现不少这样的同学,自认阅读不错,实际考出来的分数只有22分左右,甚至会更低。ETS对阅读高水平(High level)的评定标准是2230分。而事实上,阅读如果达不到25分以上,总分想要过百会比较困
The Linnaean system is so well established that we can hardly imagine an alternative, 林奈分类系统的地位已经牢固确立,我们很难想像还能有别的体系来取而代之。 but before Linnaeus, systems of classification were often