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2010年12月7日星期二

Is the "global cooling" or "global warming"?

是“全球变冷”还是“全球变暖”?

(新京报·新知周刊)
Opening of the Conference in Cancun, Copenhagen last year, apart from relying on Viagra, the public concern about climate is like one hot day. However, as the cold air north of the south, is also spreading a voice: the strong cold air emerging, many places have trouble opening a snowstorm, a similar situation has been going on for years, is obviously a "global cooling" How can there be "global warming" ah!
 
This is indeed "anti-global warming theorists," often mentioned example: 70s of last century, "global cooling" has attracted wide attention, but then "global warming" back into the mainstream theory. Since the "global cooling" was gone, and that "global warming" will disappear sooner or later. Really true?
 
70s of last century, some scientists believe that the world will enter a new ice age. The reason they have such a guess that it was because the scientific community recognized that there are two factors that can lead to global cooling: a large number of atmospheric aerosols (suspended fine particles in the atmosphere) and the Earth's orbit changes. Human activities increase the atmospheric aerosol content. They reflected solar radiation, causing global cooling. In addition, the slow periodic changes in Earth's orbit by changing the inclination of the Earth's rotation axis and the shape of the orbits, thus changing the total amount of solar radiation reaching the Earth and its distribution in different latitudes, thereby affecting the Earth's climate. Scientists then inference, then the world will gradually move to the Ice Age. Therefore, some scientists have proposed a "global cooling" of the conjecture. Of course, the slow changes in Earth's orbit, it was considered a relatively short period of "global cooling" is mainly caused by the aerosol.
 
However, "global cooling" in the current year is only part of the scientist's guess. At that time the scientific community very clearly the physical mechanism of the greenhouse effect, and will enhance the greenhouse effect of carbon dioxide has long been realized, leading to global warming. However, because of the lack of data, scientists aerosols is difficult to determine the "cooling effect" in the end there will be more strong, so it is difficult to determine in the end is the "cooling effect" is more obvious or more significant greenhouse effect. Mainstream views of the scientific community at that time was: In accordance with the understanding that time is not enough to make a final decision. 1975 National Academy of Sciences and the National Science Council's report made clear that the scientific community was not sure how future climate will change.
 
However, some media in the dissemination of scientific knowledge is like the "explosion effect", while ignoring scientific rigor. 70s of last century, "global cooling" This was the reason why there is no conclusion will be the subject of public attention, is today's skeptics as "the year of the mainstream" media's inaccurate propaganda "contributed." The most famous example is the American "Newsweek" reports in 1975. In the report, "Global Cooling" concept is a very frightening way to disseminate to the public, resulting in the concept of a pandemic. Interestingly, until 2006, "Newsweek" was made an errata, that the conclusion of this old article is not accurate.
 
70s of last century, "global cooling" and "global warming" is the scientific understanding of climate scientists, not impressive enough when the two future climate to guess. In recent years, with the increase in observational data, scientists for the aerosol-induced climate change may have a better understanding of existing findings indicate that the cooling effect has to be less than the warming effect of greenhouse gases. At the same time, from the early 90s of last century, atmospheric aerosol concentrations showed a decreasing trend. Taking these into account, "global cooling" the disappearance of this conjecture is not surprising.
□poguy(美国 地球与环境科学博士生)





2010年12月1日星期三

End of the alarm: cannibal giant rats to reproduce human (末日的警钟:食人巨鼠重现人间)

末日的警钟:食人巨鼠重现人间
 1905年,瑞士伯尔尼专利局的一个民间科学家,叫做爱因斯坦,向德国著名的期刊《物理学年鉴》投了一篇论文《论动体的电动力学》。因为这篇论文,这个叫作爱因斯坦的年轻人名动天下,并于上世纪20年代被《时代》周刊誉为“世界上新的风云人物”。

   那篇论文就是后来被称为“狭义相对论”的旷世之作,这篇文章直接导致的一个推论就是“质量就是能量”。但也就是这个简单的不能再简单的推论,将这个世界推进了核能的时代。

   核能显然为人类的生活带来了极大的便利,但是人类有没有想过核能有一天也许会将人间变成地狱。也许有人会说:我知道你要说的是核大战吧。

   核大战也许可以毁灭人类,但是对于人类来说,这或许还有一点遥远。

   而我要说的,就在当下。

   据美国《三城先驱报》等11月20日报道,位于华盛顿州中南部的汉福德核工厂建于上世纪40年代,曾经为世界第一颗原子弹提供核原料。清扫人员日前在该基地发现多处含有致命剂量放射物的老鼠排泄物,为捕获这只四处流窜的“放射鼠”,避免附近居民受到危害,工作人员设置了近60个捕鼠器,可是至今仍一无所获。有人担心,核辐射可能使“放射鼠”产生变异,将来产生一个全新的鼠种———“食人巨鼠”。

末日的警钟:食人巨鼠重现人间
   大约6周前,汉福德核工厂327号大楼的热室(强放射性工作室)被迁出来,大楼整体拆除工作开始。本月初,负责核工厂清扫工作的承包商在大楼废墟附近的地面上发现多处含有放射性物质的兔子粪便。工作人员在厂区内捕杀了18只兔子,其中有一只身上沾有放射物。

   仅仅两周之后,在同一地点的工作人员发现又有数处含有放射性物质的老鼠粪便,据初步判断,它们是由至少一只以上的“放射鼠”排泄的。工作人员在基地内布设了大约60个捕鼠器。可是迄今为止只捉住了两只普通老鼠。

末日的警钟:食人巨鼠重现人间

   这些小动物很可能误食了同一种基地内生产的放射性物质———金属铯。工作人员曾在拆毁大楼时,喷洒了大量用于抑制建筑粉尘的清水,这些废水被兔子误饮。有可能老鼠随后也误饮了同一种废水。目前华盛顿州的居民们人心惶惶。

   其实,“放射鼠”倒并不难识别,因为在黑夜里,它的全身会发出闪亮的荧光。不过有人担心,核辐射可能使老鼠产生变异,并将产生一个全新的鼠种———“食人巨鼠”。

   联想起1986年,前苏联乌克兰境内的切尔诺贝利核电站4号反应堆发生爆炸,造成30人当场死亡,8吨多强辐射物泄漏产生的奇怪物种。以及媒体报道称,上世纪90年代,一支9人科学考察小组进入切尔诺贝利时,曾遭遇一群巨鼠袭击,只有一人生还。最后当局集结大量的军队、用轻重型武器,才将所有能发现的巨鼠群消灭。

末日的警钟:食人巨鼠重现人间
   因此我们可以看出上述种种迹象都已证明,这些有为自然环境的怪物其实都是人类为了私欲所产生的后果,如果全人类不携手改变现状,那么也许不久的未来出现的将不仅仅是这些食人的巨鼠,甚至更可怕的物种也将诞生。那时,恐怕人类就真的离世界末日不远了!

(作者;康斯坦丁

2010年11月24日星期三

Save the children! Save the books! - China's corruption record(救救孩子!救救课本!——中国腐败录)

Recently, the tao main text, illustrations Feng, 1932 edition of "enlightened national language textbook," reprinted in this city to sell off, even the Press, no goods. Same series of reprints of old books on the Internet received a harvest, causing many students and parents hot. "Enlightened national language textbook," and "World Bookstore Mandarin Reader" and "Business Mandarin textbook", the Shanghai Science and Technology Literature Press, 2005 reprint. The former 1949 version were printed more than four times.
Parents, the buzz is simple: Why are the students that like 78 years ago, textbooks, do not like the current textbooks? The answer is simple: the Republic of language teaching materials closer to the children's psychological, that arouse their sympathy, and the existing material is high above, over the age of the children received, of which there are some contrived and false.
    
Not so much the choice of parents and children is the education administrative department of the spur, as it is to the current textbook authors of a slap in the face. Of course, the present authors will feel aggrieved, it should be drawn because of this slap in the face to the ideology of education as a tool those in power face.
    
After new China was founded, there have been many reform language textbooks, although less and less political overtones, but remains high above the sermon, which is caused by material failure of a root cause.
    
Our primary school textbooks often teach children to love the motherland, but the child does not understand the "great country" really means. Children really curious about the world around him, this time, need to teach children is to love father and mother, love those around us, to learn how to get along with others. Teach a child something he can understand, he will naturally grow up to understand what a great country, how great love for the motherland. As the saying goes: There is no ego, how big I am?
    
The current situation is: children were young, we taught him to love the motherland and the great truths that, to their grown up, we need to drive around brush on hand, "Do not spit", "to honor their parents," This slogan , widely advertised these from an early age should know the truth. Ruo all of the adult world, how it all like still living in the kindergarten. So there is a debate that famous comic - speed skating team Zhou Yang of China, Vancouver in 2010 after winning thank the parents, should not be surprised to be considered. Human relations is not disobedient to thank the parents! Even the parents do not thank people, how can thank the motherland! ?
    
Another example, also is a Republican version of the "new electoral Mandarin Reading" an article "Two questions about the letter." The text reads: "Ping of: President often says to us, retreat to abide by the order, should be polite. But some people say, order, courtesy, is bound free stuff. According to your opinion, what should do?"Between the lines have on the child's respect, and encourage them to discuss the equality of ideas. The new textbooks tend to doubt the tone of wording, did not give the children the opportunity to stay more involved in discussions.
    
So you can see that the street signs posted in various high-handed, you know where the source. Do not learn from an early age of equality and respect, so that people grow up, especially the person has the right job, the situation will be worse.
    
Experts had noted that the existing language textbooks exist, "the four missing", that is, the absence of the classic children's lack of perspective, lack of pleasure and the absence of facts. In my opinion there is a more significant loss. 1960 Fengyang weapons stores have a doctor named Wang Shansheng commune. The great famine that time comes, many people suffer from an unusual disease that Dr. Wang commune cadres please think of a way, he looked at, say can not cure, because "less blindly medicine." And that herbs are food. Decades later, in the Chinese education also has a disease that long treatment, because medicine is less blindly, this herb is common sense. Common sense! This is the biggest missing. Common sense need to defend it?Course requirements. But before the defense, let us face the common sense, do not trample on common sense right?
    
In fact, in 2003, Mr. Qian Liqun professor at Beijing University had published a monograph, "On the outside of language education", the book is the first "to" man "as the center." Qian Liqun that "the process of language education, the students listening, speaking, reading and writing abilities, ultimately is to promote the mental health of students grow up healthy development of personality as a starting point and destination of education, rather than to nurture students into thinking the slave of others, according to the will of others to speak, writing tools. "Unfortunately, our education seems to be going in the opposite direction. We are currently the standard of language courses is to languages of the tools of the loss of humanistic considerations. The goal is not to train citizens to become self-improvement, but the builder - is highly symbolic materialization of "screws."
    
Now the primary language teaching, in any case should be let go control, provided that a free press stage for a variety of educational society organizations of the best writers, educators, psychologists, publishers, and deep knowledge to joint preparation of the outstanding scholars Education authorities only need to organize an expert committee to carry out various publications on fair and reasonable assessment and recommendations, but not now just the opposite. Government do not do, this particular course.
    
This year a new book "Save the children: primary school language teaching critical," a book title page, recorded Kant's famous statement: "parents educate their children, they usually just let them adapt to the current world - even if it is a fallen world . "Indeed, the" adaptation "is a widespread reality, but a good teacher to tell the children of this world," Fallen ", where the fall, why fall, otherwise, it is self-deception!
   
This highly integrated a number of articles on without one by one note cited.

    
Tao (1894-1988) of famous contemporary educator, writer, Editor and Publisher, and social activist, a great master of modern education, to reform and development of modern materials made an indelible contribution. He advocated the purpose of basic education is to develop all-round development of qualified citizens. Repeatedly pointed out his old age, national modernization, there is in education, and basic education in primary schools; primary school teachers for their hard work the whole society should be respected.


(译者;谷歌翻译)(作者;赵普
(本文转载自新浪博客;http://blog.sina.com.cn/s/blog_598120640100nahb.html?tj=1

 近日,叶圣陶主文、丰子恺插画、1932年版《开明国语课本》重印本卖断市了,连出版社都没货。同期重印的老课本系列在网上收获好评一片,引起不少学生和家长热议。《开明国语课本》,还有《世界书局国语读本》和《商务国语教科书》,是上海科学技术文献出版社2005年重印的。前者在1949年前共印了四十余版次。
救救孩子!救救课本!
    家长们热议的话题很简单:为什么现在的学生会那么喜欢78年前的课本,却不喜欢现行的课本?答案也很简单:民国语文教材更贴近孩子们的心理,更能引起他们的共鸣,而现行教材则高高在上,超过了孩子们的接受年龄,其中还有一些做作和虚伪的东西。
    与其说家长和孩子的选择是对教育行政部门的鞭策,还不如说是给现行教材编写者一记响亮的耳光。当然,现行编写者一定会觉得委屈,因这耳光实在应该抽向将教育当作意识形态工具的主政者脸上。
    新中国成立之后,语文课本有过多次改革,虽然其中的政治意味越来越淡,但高高在上的说教依然存在,这是造成教材失败的一个根本原因。
    我们的小学课本经常教导孩子们要爱祖国,但是小孩子并不能理解“伟大祖国”的真正含义。小孩子真正好奇的是他周围的世界,这个时候,最需要教给孩子的是要爱爸爸妈妈、爱身边的人,要学会怎样与人相处。小时候教好了他能够理解的东西,长大后他自然能理解什么是伟大的祖国,应该怎样热爱伟大的祖国。正所谓:没有小我,何来大我?
    而现在的状况是:孩子还小的时候,我们教育他要热爱祖国这样的大道理,到他们长大成人,我们反倒要到处刷上“不要随地吐痰”、“要孝敬父母”这样的标语,广而告之这些从小就应该懂得的道理。偌众的成人世界,怎么看都像是还生活在幼儿园里。所以就有了那次著名的滑稽争论——中国速滑队员周洋在2010年温哥华冬奥会夺冠后感谢父母,居然被认为不应该。不感谢父母才是人伦悖逆!连父母都不感谢的人,怎么可能感谢祖国!?
    再比如,同样是民国版的《新选国语读本》有篇《两个疑问的信》。课文这样写:“平之:先生时常对我们说,进退要守秩序,应对要有礼貌。但是也有人说,秩序,礼貌,是束缚自由的东西。照你看来,究竟应该怎样呢?”字里行间有对孩子的尊重,并鼓励他们进行讨论的平等思想。而新教材则往往以不容置疑的口吻行文,没给孩子们留更多参与讨论的机会。
    所以你看现在大街上张贴的种种霸道标语,就会知道源头在哪儿了。从小就没有学会平等和尊重,等这个人长大了,特别是这个人有职有权了,情况便更糟了。
    曾有专家指出,现行语文课本存在“四大缺失”,即经典的缺失、儿童视角的缺失、快乐的缺失和事实的缺失。依我看还有一个更重大的缺失。1960年安徽凤阳的武店公社有个医生叫王善生。彼时正值大饥荒,许多人患上了不寻常的恶疾,公社干部请王医生想想办法,他看了看,说治不了,因为“少了一味药。” 而那味药就是粮食。数十年后,在中国教育上也有一种恶疾久治不愈,原因也是少了一味药,这味药就是常识。常识!这才是最大的缺失。常识需要捍卫吗?当然需要。但在捍卫之前,先让我们正视常识,不践踏常识好吗?
    其实早在2003年,北京大学教授钱理群先生就曾出版了一本专著《语文教育门外谈》,书中第一篇就是《以“立人”为中心》。钱理群认为,“语文教育的过程,对学生听、说、读、写能力的培养,最终是要促进学生精神的健康成长,个性的健全发展,以此作为教育的出发点和归宿,而不是把学生培养成他人思想的奴隶,按他人的意志去说话、写作的工具。” 遗憾的是我们的教育似乎在往相反的方向走。我们目前的语文课程标准是将语文工具化,失去了人文性考量。其培养目标不是成为自我完善的公民,而是建设者——其象征是高度物化的“螺丝钉”。
    现在的小学语文教材,无论如何都应该放开控制,提供自由的出版舞台,让各种教育团体组织最优秀的文学家、教育家、心理学家、出版家和学识精深的优秀学者来共同编写。教育主管部门只需要组织专家委员会来对各类出版物进行公正合理的评估和推荐,而不是现在这样恰恰相反。政府该做什么不该做什么,于此尤然。
    今年出的新书《救救孩子:小学语文教材批判》一书的扉页,录了康德的一句名言:“父母在教育孩子时,通常只是让他们适应当前的世界——即使它是个堕落的世界。”确实,“适应”是一种广泛存在的现实,但好的老师要告诉孩子这个世界的“堕落”、何处堕落、为何堕落,否则就是自欺欺人!
   
本文综合了多篇高论,恕不一一注引。

    叶圣陶(1894—1988)我国当代著名教育家、文学家、编辑出版家和社会活动家、现代教育的一代宗师,对我国现代教材改革和发展做出了不可磨灭的贡献。他主张基础教育的目的是培养全面发展的合格公民。晚年多次指出,国家实现现代化,根本在教育,而教育的根本在小学;小学教师的辛勤劳动应得到全社会的尊重。救救孩子!救救课本!

2010年11月16日星期二

Quest: Earth's most desolate corners of the ten(探秘:地球上最荒凉的十个角落)

1. 特里斯坦-达库尼亚群岛
探秘:地球上最荒凉的十个角落
南大西洋上的小岛特里斯坦-达库尼亚群岛,可谓是世界上最最荒蛮的一个角落了。距离此岛 最近的,是1700英里之外的南非,和2000多英里以外的南美洲海岸。虽然荒远,但这里可谓历史悠远。1506年葡萄牙探险家发现了此地,一小撮英国 人,意大利人和美洲人从19世纪开始在此地居住,但迄今仍为英国属地。现在岛上居民共271人,大多为最早那批移民的后代,以农耕和手工业为生。尽管有了 电视和通过卫星联通的网络设备,此岛仍是荒凉偏远遥不可及。目前只能坐远洋渔船过去。


2. 墨脱县
探秘:地球上最荒凉的十个角落
作为中国最后一个未通路的地方,西藏林芝地区的墨脱县算是亚洲仅有的一片未开发的处女地 了。光是去那儿就难如登天,得翻雪山过吊桥(200米)堪比当年红军长征之千难万险方能到达。除了惊人的地理位置和自然资源,墨脱县还像欧亚大陆上的一个 孤岛,为了建造一条可通之路国家每年都花费数百万美元,但所有的努力都因塌方,雪崩,以及复杂多变的环境而以失败告终。直到上世纪90年代初期,终于建成 了一条临时的高速公路通往墨脱镇中心,但仅仅通车数天,就再次被茂密的丛林覆盖了。
3. 昆士兰
探秘:地球上最荒凉的十个角落
澳洲大陆因其稀少人口和原生态自然风光而闻名,这两样都以昆士兰为典范,地处澳洲北部一 角的一大片荒原。这里仅有18000人口,绝大多数是当地部落的土著民,堪称世界上最大的未开发地区。这里很好地保存了原始美态,但也成了澳大利亚最难到 达的地方。即使有了四轮交通工具,这里的许多地方仍是完全到不了的,只能徒步远徙而至。
4、加拿大的纽纳武特地区
探秘:地球上最荒凉的十个角落
加拿大的纽纳武特地区,大西洋上的阿勒特小镇距离北极仅有500英里。这儿被广泛认为是 世界上最北部的一个居住区,也是最荒凉的地区之一。根据加拿大广播和气象实验室的数据,此地的气温低至零下40摄氏度,因其高纬度的地理位置,也可见极昼 和极夜现象。距离阿勒特最近的城镇是1300英里以外的一个小渔村,到魁北克这样的主要城市大约是两倍的距离。因当地的军事之用阿勒特也有机场,但由于气 温太低经常不可用。

5.东岛
探秘:地球上最荒凉的十个角落
距离智利海岸2000英里的东岛(亦称复活岛),是浩瀚的太平洋上人迹罕至的一个小岛。 仅有70平方公里的面积,现有人口约4000。此岛以其零落在海滩上的石雕群而闻名,大约在16世纪由岛上最早的原住民雕刻而成,由于大量砍伐制造成雪橇 输出岛上的树木森林几乎消失殆尽。科学家称,曾经满目苍翠的小岛如今几近荒芜,这是所有的初来者对这里的另一个深刻印象。最早来此的移民需要数周的时间到 达这里,现在有了号称世界上最偏远的一个飞机场,旅客们可以在智利的圣地亚哥搭乘航班。
6. 皮特克恩岛
探秘:地球上最荒凉的十个角落
皮特克恩岛的位置几乎是南太平洋的正中央。最近的领国是西边的法属比尔群岛和塔西提岛, 但距离仍有数百英里。这座岛屿是英国在太平洋上最后的领土,岛上居住着大约50人,大多是“博爱号”船员的后代。1789年,博爱号发生了一场传奇性的哗 变,船员们出于对孤岛上远离尘嚣生活的向往,抛弃了自己的职责和使命,在附近的港口烧毁了船只,并在皮特克恩岛上定居下来。今天,这些船员的后代们都靠农 耕,渔业和出售他们稀有的邮票为生。岛上没有空中航运,所以从大陆去那儿只能搭乘新西兰出发的航船,大概需要十天。
7. 科尔盖朗群岛
探秘:地球上最荒凉的十个角落
所谓“孤岛”就是远离任何繁华文明的荒蛮之地,科尔盖朗群岛就是这样一座位于印度洋南部 的小群岛。岛上没有机场,只有从马达加斯加海岸边一座叫Reunion 的岛屿经过6天的航行方能到达。岛上没有原始居民,但这里住着许多法国的科学家和 工程师,故该岛一直为法属领地。科尔盖朗群岛自从1772年这里被发现以来就为许多的生物学家和探险家所亲来,包括库克船长也于1776年到过此地。现在 这个岛主要作为科研中心,也有着法国的附属机场和军事防御系统,甚至还作为安置法国危险难民之用。
8. 斯克斯地区
探秘:地球上最荒凉的十个角落
面积836000平方公里的格陵兰岛是世界上最大的岛屿,但岛上人迹罕至,仅有 57000人口。在格陵兰的所有城镇中,最为荒远的恐怕就是斯克斯了,小镇位于岛屿东部海岸,以渔业和打猎为生。斯克斯地区面积大约于英格兰差不多,但只 有可怜的500位居民,这就表示每个人拥有差不多150平方英里的土地。当地居民大多以捕猎北极熊和鲸为生,暖和的季节也捕大比目鱼。斯克斯地区位于海 岸,但周围海域常年冰冻,每年只有三个月时间可以允许船只靠港。25英里远处有哥机场,但航班非常少。

9、秘鲁的圣塔芭芭拉
探秘:地球上最荒凉的十个角落
说到荒蛮之地,在南美洲恐怕没有地方可以于秘鲁的圣塔芭芭拉相比,这是一个位于安第斯冰 河的小矿镇。17000英尺的海拔让这里成为了世界上最“高”的城市,如此特殊的地理位置更愈显荒远。小城建于早期冰河之上,只能沿着危险曲折的山路驱车 而至。旅途就需数日,而随之而来的高原反应和当地贫苦的生活环境使得很少人能长留此地。但小城人口却有30000之多,几乎都是金矿业的从业者,大多数的 矿产埋藏在附近洞穴的冰层下。

10.麦克莫多站
探秘:地球上最荒凉的十个角落
南极洲上没有原住民,但陆续有不少研究中心在这里开展工作,其中最大的就是麦克莫多站。 坐落在南极洲北部洛斯山脉,这里几乎终年冰封,作为国际研究的中心站,相对温暖的夏季时大约1200名科学家和工人在此工作。从前去往南极洲需要数月甚至 几年,现在到麦克莫多站已经有三个航班了。也正因如此,那里的科学家们也能享受到许多城市里的现代设施,比如健身房,电视机,甚至是九洞飞盘高尔夫等。
(作者;博闻网

2010年11月11日星期四

The impact of the eye! The world's most unusual rainbow(冲击眼球!世界上最不寻常的彩虹)

(作者;博闻网

Google began to support the South African Zulu language and voice search(Google 开始支持祖鲁语和南非语的语音搜索)

Zulu_Afrikaans
Google 从本月初开始提供祖鲁语,南非语以及南非口音的英语语音搜索的支持,其中 Google 特别说明支持祖鲁语是为了表示他们对小语种的支持。其实 Google 应该到景德镇来,这里每个村的语言基本都可以当一门外语来听,趁镇长还没有决定开始消灭这些方言的时候来保护起来吧,听说某个南边的村要开个省级运动会就被要求停止说村里方言了呢。
文章转载自:谷奥——探寻谷歌的奥秘 [http://www.guao.hk]

2010年11月10日星期三

Sad! The world's most endangered large freshwater fish(心痛!世界上濒临灭绝的大型淡水鱼)

人活着不容易,动物活着更不容易,尤其是动物长这么更是艰难,人类会给它们一个生存的空间吗?这些动物都灭绝了的话,那人类离灭绝也就不远了。

巨滑舌鱼和潜水者
心痛!世界上濒临灭绝的大型淡水鱼



心痛!世界上濒临灭绝的大型淡水鱼
巨滑舌鱼是一种生长在南美的淡水食用鱼,这种鱼一般可以长到3米。
心痛!世界上濒临灭绝的大型淡水鱼

这张成年巨滑舌鱼的照片是由一个来自巴西玛瑙斯的潜水者拍摄的。作为世界上最大的淡水鱼,一些巨滑舌鱼可以长到3米长180千克重。但是由于过度捕捞,这些巨型鱼类濒临灭绝。
心痛!世界上濒临灭绝的大型淡水鱼
白鲟标本
自从2003年以来,人类再也没有见到过白鲟。科学家担忧这种鱼类已经灭绝。中华鲟已经列上了濒危动物名单。

心痛!世界上濒临灭绝的大型淡水鱼
柬埔寨巨暹罗鲤
心痛!世界上濒临灭绝的大型淡水鱼


幼年的巨型黄貂鱼
心痛!世界上濒临灭绝的大型淡水鱼
成年的巨型黄貂鱼重量可达到90-140kg,长度可达4米,科学家们认为巨型黄貂鱼是世界上最大的淡水鱼。
心痛!世界上濒临灭绝的大型淡水鱼

湖鲟(或者黄鲟?)
心痛!世界上濒临灭绝的大型淡水鱼
它们有着很长的寿命。1953年加拿大的科学家捕到了一只两米长的湖鲟,它已经有152岁了。湄公河巨型鲶鱼,长达3米,重达650公斤。
心痛!世界上濒临灭绝的大型淡水鱼

在过去的20年里,鱼的产量减少了90%。
心痛!世界上濒临灭绝的大型淡水鱼

罗鱼
心痛!世界上濒临灭绝的大型淡水鱼

鱼卵
心痛!世界上濒临灭绝的大型淡水鱼

这是世界上最大的大马哈鱼,看看这张照片你就知道它有多贪吃了。
心痛!世界上濒临灭绝的大型淡水鱼
(作者;博闻网