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全部话题 - 话题: speci
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H********g
发帖数: 43926
1
来自主题: Joke版 - 瓢虫到底有几个星
Most coccinellids have oval, dome-shaped bodies with six short legs.
Depending on the species, they can have spots, stripes, or no markings at
all. Seven-spotted coccinellids are red or orange with three spots on each
side and one in the middle; they have a black head with white patches on
each side.
As well as the usual yellow and deep red colourings, many coccinellid
species are mostly, or entirely, black, dark grey, gray, or brown, and may
be difficult for an entomologist/nonentomologists to ... 阅读全帖
c**i
发帖数: 6973
2
来自主题: Literature版 - 桂花飘香
I am always confused about 桂. I studied Japanese language and 桂 in Japan
looks and smells very different from 桂 in China. Today I take advantage of
this opportunity to clarify it once and for all.
(1) Osmanthus fragrans
http://en.wikipedia.org/wiki/Osmanthus_fragrans
(Chinese: 桂花; Japanese: 金木犀 kinmokusei; also known as Sweet Olive, Tea
Olive and Fragrant Olive [as lwell as Sweet Tea Olive]); native to Asia,
from the Himalaya east through southern China (Guizhou, Sichuan, Yunnan) and
to Taiwan a... 阅读全帖
D*****r
发帖数: 6791
3
发现DNA双螺旋结构的弗朗西斯.克里特解释为什么偏向无神论
My parents were religious in a rather quiet way. We had nothing like family
prayers, but they attended church every Sunday morning and when we were old
enough my brother and I went with them. The church was a nonconformist
protestant one, a Congregational Church, as it is called in England, with a
substantial building on Abington Avenue. As we did not own an automobile, we
often walked to church, though sometimes we made part of the journey by bus
. My mother greatl... 阅读全帖
J*****3
发帖数: 4298
4
In biology, a species is one of the basic units of biological classification
and a taxonomic rank. A species is often defined as a group of organisms
capable of interbreeding and producing fertile offspring. While in many
cases this definition is adequate, more precise or differing measures are
often used, such as similarity of DNA, morphology or ecological niche.
Presence of specific locally adapted traits may further subdivide species
into "infraspecific taxa" such as subspecies (and in botany... 阅读全帖
I****2
发帖数: 1091
5
来自主题: TrustInJesus版 - 进化论是科学真理吗?
北卡++ 给你科普下什么是物种
In biology, a species is one of the basic units of biological classification
and a taxonomic rank. A species is often defined as a group of organisms
capable of interbreeding and producing fertile offspring. While in many
cases this definition is adequate, more precise or differing measures are
often used, such as similarity of DNA, morphology or ecological niche.
Presence of specific locally adapted traits may further subdivide species
into "infraspecific taxa" such as subspecie... 阅读全帖
D*****r
发帖数: 6791
6
来自主题: TrustInJesus版 - Mark Twain:Letters from the earth
Letters from the Earth
When the Creator had finished thinking, He said, "I have thought. Behold!"
He lifted His hand, and from it burst a fountain-spray of fire, a million
stupendous suns, which clove the blackness and soared, away and away and
away, diminishing in magnitude and intensity as they pierced the far
frontiers of Space, until at last they were but as diamond nailheads
sparkling under the domed vast roof of the universe.
At the end of an hour the Grand Council was dismissed.
They left... 阅读全帖
s*********t
发帖数: 4253
7
来自主题: TrustInJesus版 - 关于进化论的事
"The mechanisms of reproductive isolation or hybridization barriers are a
collection of mechanisms, behaviors and physiological processes that
preventthe members of two different species that cross or mate from
producing offspring, or which ensure that any offspring that may be produced
is not fertile. These barriers maintain the integrity of a species over
time, reducing or directly impeding gene flow between individuals of
different
species, allowing the conservation of each species’ character... 阅读全帖
s*********t
发帖数: 4253
8
来自主题: TrustInJesus版 - 关于进化论的事
"The mechanisms of reproductive isolation or hybridization barriers are a
collection of mechanisms, behaviors and physiological processes that
preventthe members of two different species that cross or mate from
producing offspring, or which ensure that any offspring that may be produced
is not fertile. These barriers maintain the integrity of a species over
time, reducing or directly impeding gene flow between individuals of
different
species, allowing the conservation of each species’ character... 阅读全帖
s*********t
发帖数: 4253
9
来自主题: TrustInJesus版 - 关于进化论的事
"The mechanisms of reproductive isolation or hybridization barriers are a
collection of mechanisms, behaviors and physiological processes that
preventthe members of two different species that cross or mate from
producing offspring, or which ensure that any offspring that may be produced
is not fertile. These barriers maintain the integrity of a species over
time, reducing or directly impeding gene flow between individuals of
different
species, allowing the conservation of each species’ character... 阅读全帖
j*******7
发帖数: 6300
10
来自主题: TrustInJesus版 - Quotations from Scientists on Evolutionism
(The purpose of this page is to present quotations from scientists that
illustrate their recognition that the darwinian theory of evolution is bad
science.)
Interesting Quotations from Scientists on Evolutionism
Here are some of our favorite quotes by scientists speaking on the subject
of evolutionism. Note that many of these scientists are evolutionists
themselves, in spite of their comments. I suppose that they would maintain
that to admit that "God did it" would not be "intellectually satisfy... 阅读全帖
j*******7
发帖数: 6300
11
来自主题: TrustInJesus版 - Quotations from Scientists on Evolutionism
(The purpose of this page is to present quotations from scientists that
illustrate their recognition that the darwinian theory of evolution is bad
science.)
Interesting Quotations from Scientists on Evolutionism
Here are some of our favorite quotes by scientists speaking on the subject
of evolutionism. Note that many of these scientists are evolutionists
themselves, in spite of their comments. I suppose that they would maintain
that to admit that "God did it" would not be "intellectually satisfy... 阅读全帖
n******g
发帖数: 2201
12
来自主题: Programming版 - 知道R为什么那么流行了哈哈
写一句顶一万句。。。。瞧第三,4句多浓缩
colors = rainbow(length(unique(iris$Species)))
names(colors) = unique(iris$Species)
ecb = function(x,y){ plot(x,t='n'); text(x,labels=iris$Species, col=colors[
iris$Species]) }
tsne_iris = tsne(iris[,1:4], epoch_callback = ecb, perplexity=50)
g*********d
发帖数: 233
13
科学家呼吁关注全球基因组数据库污染
样品处理有可能是导致DNA数据库广泛污染的最主要原因
2月16日发表在《公共科学图书馆·综合》(PLoS ONE)期刊上的一份研究报告称康涅
狄格大学的遗
传学家Mark Longo及同事发现由顶级公共测序机构提供的测序结果构建的基因组数据库
中的大约
1/5的细菌、植物和非灵长类动物基因组数据受到了人类DNA的污染,样品处理有可能是
导致DNA数据
库广泛污染的最主要原因。这一研究报告引起了生物研究人员及各大权威媒体的高度关
注,《科学
家》(The Scientist)杂志以及《自然》(Nature)杂志均在其官方网络上第一时间
对这一事件
进行了报道。
Mark Longo等在报告中呼吁科学家们需更加努力以确保测序获得的基因组不受到污染,
并应对来自
公共基因组数据库的基因组进行潜在污染检测。
“基因组污染是一个大问题,但却不是一个新问题,”加州大学进化生物学家、美国能
源部联合基因组
研究所系统发育基因组学计划负责人Jonathan Eisen说:“这篇论文或可帮助提醒人们
注意这一问
题。”
污染有可能在测序的任何一个阶段导入到基因组序列中... 阅读全帖
p******i
发帖数: 1092
14
转录的起始位点:
如果有TATA BOX, 很可能是single transcription start site,
但是大多数真核gene都没有TATA BOX,所以都是有好几个TSS clusters,每个TSS
cluster里面的TSS们大概在200bp这么大的范围之内
如果有几个相聚较远的TSS cluster,那么这个gene有可能有不同的mRNA species,但
是还是要做实验去验证
是不是应该针对每一个mRNA species,再单独考虑start codon 的问题?
however... 貌似很多gene都有不同的mRNA species,但是不一定这些mRNA species都
有功能,更不一定都会translate成蛋白
你说你的目的是得到一个蛋白的short form,
你expect short form和wild type的区别是什么?
after all, if there is nothing new about this short form, you cannot publish
, right?
是不是可以把可能的short form的ORF... 阅读全帖
l****a
发帖数: 662
15
来自主题: Biology版 - 女人为什么月经?

Some anthropologists have questioned the energy cost of rebuilding the
endometrium every fertility cycle. However, anthropologist Beverly
Strassmann has proposed that the energy savings of not having to
continuously maintain the uterine lining more than offsets energy cost of
having to rebuild the lining in the next fertility cycle, even in species
such as humans where much of the lining is lost through bleeding (overt
menstruation) rather than reabsorbed (covert menstruation).[22][23] However,... 阅读全帖
a*****x
发帖数: 901
16
来自主题: Biology版 - 女人为什么月经?
It is hard to compare certain complicated traits across species, because
different species face different situation even in the same enviroment. For
example, there are definitely advantages of the courtship behavior in
certain species,but to other species, it is just a waste of time. As another
example, birds develop complicated behavior for clearing parasites on each
other's head, because they can't reach the heads of themselves. They
developmend complicated behavior phenotypes to prevent being... 阅读全帖
l**********1
发帖数: 5204
17
>发信人: sunnyday (胖头鱼。按斤卖就赚了), 信区: Biology
标 题: Re: sunnyday,你再讲讲BT转基因粮食的看法吧
发信站: BBS 未名空间站 (Sun Oct 20 19:48:54 2013, 美东)
ignored stuff
如果中国的转Bt蛋白水稻被批
准的话,将是世界上第一个被广泛食用转Bt蛋白的作物
-----
哪国人都能用Bt 水稻或小麦, 但以三聚氰氨为代表的 '一切向钱看, 摸着石头过河'
的土鳖用了的话
有再来一次 <<寂静的春天>> 的 可能 范围是横跨整个欧亚大陆
http://zh.wikipedia.org/wiki/寂静的春天
n.b.
Cry1F Bt 不是对脊椎动物的 而是对非对象的有益无脊椎动物 比如蜜蜂等
土鳖可以做到致死率 不是以下论文的No. 4 的<1% 而是 No.3 >50% 吧
pls refer
3. The greatest source of variability in estimated mortality was species
sensitivity. Before... 阅读全帖
N***r
发帖数: 2539
18
//////////////////////////////
Sorry I don't have Chinese input here.
I am lack of knowledge of Chemistry....
This question was raised when I read a journal paper, A model of chemistry
and thermal hydraulics in PWR fuel crud deposits, Journal of Nuclear
Materials 353 (2006) 1–11
//////////////////////////////
As a background, in PWR (pressurized water reactor), certain chemistry species are added into the coolant system to control reactivity, pH value, etc. Two common these species are H3BO3 and... 阅读全帖
s**********8
发帖数: 25265
19
来自主题: MedicalDevice版 - Investigator's brochure
Investigator's brochure
From Wikipedia, the free encyclopediaJump to: navigation, search
Some of this article's sections are empty. Please add content to empty
sections. (May 2011)
This article needs additional citations for verification. Please help
improve this article by adding reliable references. Unsourced material may
be challenged and removed. (September 2009)
The Investigator's Brochure (IB) is a comprehensive document summarizing the
body of information about an investigational product ... 阅读全帖
I***i
发帖数: 14557
20
来自主题: Animals版 - 大家进来看看这个图
http://www.engadget.com/2012/08/13/new-lacewing-species-found-o
Armchair Darwinians discover new insect species on Flickr
Entomologist Shaun Winterton has discovered a new species of Malaysian
Lacewing from the comfort of his computer. Idly browsing Flickr, he came
across Guek "Kurt" Hock Ping's snap of an insect taken while hiking in the
Malaysian jungle, which bore an unfamiliar black-and-blue pattern along its
wings. When his colleagues couldn't identify the markings, he realized he
was stari... 阅读全帖
i*****s
发帖数: 15215
21
来自主题: Animals版 - 休斯顿塔木地区招募养蛇义工
养一只猫鼬/Mongoose更好。
Anyone who is familiar with Rudyard Kipling’s story Rikki Tikki Tavi will
know to what extent mongooses can be domesticated and turn out to be a
blessing for human beings. The story revolves round a pet mongoose that
saves an entire family from two cobras.
Belonging to the family of Herpestidae, mongooses are small carnivores
usually hailing from Eurasia and mainland Africa. However the word mongoose
has been derived from the Marathi term mangus (pronounced ‘mongoose’).
There a... 阅读全帖
r*******r
发帖数: 259
22
来自主题: Animals版 - World's Rarest Whale Seen for First Time
The world's rarest whale has been spotted for the first time, in New Zealand
, where two of the whales stranded themselves.
The two spade-toothed beaked whales, a mother and calf, stranded and died on
Opape Beach on the North Island of New Zealand, in December 2010. The
mother was 17 feet (5.3 meters) long and the calf was 11 feet (3.5 m) long.
A report describing the whales and the analysis of their DNA appears in the
Nov. 6 issue of the journal Current Biology.
"Up until now, all we have known... 阅读全帖
I***i
发帖数: 14557
23
http://fortmyers.floridaweekly.com/news/2013-01-02/Top_News/Two
Two Southwest Florida birds you’re likely to encounter
Ibis once hunted for its meat
This unmistakable bird is found abundantly throughout Southwest Florida. Its
long de-curved beak and its legs turn bright red when the white ibis is in
breeding plumage. The distinctive black tips at the end of each wing when in
flight make it an easy bird to identify. The juvenile is a mottled brown,
similar in coloration to an adult limpkin. On th... 阅读全帖
k********k
发帖数: 5617
24
来自主题: Animals版 - 弗羅里達 獵殺 緬甸蟒 行動
不是獵熊,不是獵鹿,不是獵狼。而是獵殺凶惡外來物種“緬甸蟒蛇”。
在弗羅里達州南部大沼澤地區。今天(2013年一月13日星期日)雅虎新聞頭版頭條。
http://news.yahoo.com/fla-python-challenge-draws-800-hunters-23
Fla. 'python challenge' draws about 800 hunters
By JENNIFER KAY | Associated Press – 9 hrs ago
BIG CYPRESS NATIONAL PRESERVE, Fla. (AP) — An armed mob set out into the
Florida Everglades on Saturday to flush out a scaly invader.
It sounds like the second act of a sci-fi horror flick but, really, it's
pretty much Florida's plan for dealing with an infestation o... 阅读全帖
i*****s
发帖数: 15215
25
☆─────────────────────────────────────☆
arita (in woundedland) 于 (Tue Sep 25 12:55:19 2012, 美东) 提到:
原始贴名叫:看李冰冰的贴养成了“坏”毛病。后来扩展为蜘蛛日记的续集,最后定名
为“和李大师一起跟踪蜘蛛【第二季】”。
看第一季,请参见“【图片记录】跟踪蜘蛛30天”。
http://www.mitbbs.com/article_t/Animals/22697.html
==============================================
发信人: arita (in woundedland), 信区: Animals
标 题: 看李冰冰的贴养成了“坏”毛病
发信站: BBS 未名空间站 (Tue Sep 25 12:55:19 2012, 美东)
怎么办,30天被惯出了个“坏”毛病。就是每天有事没事都要看看,看到了更新和图片
就踏实了。今天还是习惯性地看,但是再没有更新了,心里空落落的。李冰冰,你家里
的闭合食物链上还有别的生物吧!赶紧。
注:这个帖子既... 阅读全帖
h*h
发帖数: 18873
h*h
发帖数: 18873
27
What’s Up With That: Why Do Cats Love Boxes So Much?
By Bryan Gardiner
Take heart feline enthusiasts. Your cat’s continued indifference toward her
new Deluxe Scratch DJ Deck may be disappointing, but there is an object
that’s pretty much guaranteed to pique her interest. That object, as the
Internet has so thoroughly documented, is a box. Any box, really. Big boxes,
small boxes, irregularly shaped boxes—it doesn’t matter. Place one on the
ground, a chair, or a bookshelf and watch as Admiral ... 阅读全帖
p****y
发帖数: 23737
28
来自主题: _Vegetarianism版 - Biodiversity Talks Underway in Japan
Biodiversity Talks Underway in Japan 10/27/2010 10:24:56 PM
http://www.vision.org/visionmedia/article.aspx?id=36375
Global talks on how to preserve the world's natural resources are entering
their final stages in the Japanese city of Nagoya.
High level discussions between environment ministers began on Wednesday
morning, with Japanese Prime Minister Naoto Kan outlining at the opening
ceremony the risks of inaction.
(SOUNDBITE) (Japanese) JAPANESE PRIME MINISTER NAOTO KAN SAYING:
"Today, we are l... 阅读全帖
p****y
发帖数: 23737
29
【 以下文字转载自 Vegetarianism 俱乐部 】
发信人: purity (purity), 信区: Vegetarianism
标 题: 转基因农田超级野草崛起,美国农民焦头烂额
发信站: BBS 未名空间站 (Mon Oct 4 10:07:30 2010, 美东)
转基因农田超级野草崛起,美国农民焦头烂额
森·哈姆林是一名拥有相关证书的作物顾问和农学家,他正在田纳西的戴尔斯堡寻找对
草甘膦产生抗性的杂草。艾迪·安德森正往他的地里追加喷洒灭草剂,以对抗那些对草
甘膦产生抗性的杂草。安德森先生有着大约3,000公顷大豆田,他正在对付那些有害的
长芒苋。
在至少22个州立十种产生抗性的杂草感染了上百万公顷的土地。艾迪·安德森是田纳西
州戴尔斯堡的一名农民。15年来他一直是免耕农业坚定的拥护者。免耕农业是一种环境
友好技术,几乎排除了耕作导致的水土流失以及肥料和杀虫剂造成的有害残留。
但今年情况不一样了。“农达”(Roundup)是孟山都公司原创的拳头产品,但现在也
有其他公司用它的属名“草甘膦”来进行销售,这东西对于农民来说,曾一度几乎算得
上是种奇迹化学品。它有着广谱的... 阅读全帖
l**i
发帖数: 8144
30
来自主题: Military版 - Anthropic principle
简单地讲 就是谋事在人 成事在天
认为社会发展沿着某个预定方向发展的理论 都是傻逼理论
--------------------------------------
Anthropic principle
From Wikipedia, the free encyclopedia
In astrophysics and cosmology, the anthropic principle is the philosophical
argument that observations of the physical Universe must be compatible with
the conscious life that observes it. Some proponents of the argument reason
that it explains why the Universe has the age and the fundamental physical
constants necessary to accommodate conscious life. As a ... 阅读全帖
l********k
发帖数: 14844
31
Secondary evolution of swimming
While tetrapods lost many of their natural adaptations to swimming when they
evolved onto the land, many have re-evolved the ability to swim or have
indeed returned to a completely aquatic lifestyle.
Primarily or exclusively aquatic animals have re-evolved from terrestrial
tetrapods multiple times: examples include amphibians such as newts,
reptiles such as crocodiles, sea turtles, ichthyosaurs, plesiosaurs and
mosasaurs, marine mammals such as whales, seals and o... 阅读全帖
d*****l
发帖数: 8441
32
企鹅在南极,南极实际上是变冷的。
So, the penguin paranoia is completely unjustified. Of course, you can’t
take away the terror that has and continues to be inflicted on children who
love our tuxedo feathered friends largely through viewings of “March of the
Penguins” and “Happy Feet.”
But that is the way of the enviro-alarmist. Pick a loveable looking
creature that makes a great plush toy, and then create alarm that it is
endangered from some source in order to demonize production and
manufacturing in the Uni... 阅读全帖
m**c
发帖数: 7299
33
【 以下文字转载自 sysop 讨论区 】
发信人: msgc (为了下一代免遭变态残害), 信区: sysop
标 题: 钻风,昨晚在此胡闹的那只野鸡怎么处理的?
发信站: BBS 未名空间站 (Wed May 28 09:07:53 2014, 美东)
要不要去封了这类网站呀, 然后把知道kaleege就是野鸡的全杀光? 听到过这个词的也
消灭光, 象寻秦记里的项少龙一样.
http://www.thefreedictionary.com/Kaleege
Ka`leege´
n. 1. (Zool.) One of several species of large, crested, Asiatic
pheasants, belonging to the genus Euplocamus, and allied to the firebacks.
http://dictionary.reference.com/browse/kaleege
Kaleege
Ka*leege", n. (Zo["o]l.) One of several species of l... 阅读全帖
s******g
发帖数: 466
34
Before and after pictures of a carp dish from Tianjin
American fish experts visited China in early September to seek a solution to
the proliferation of Asian carp in the United States. The fish is
considered a delicacy in China but is posing a threat to native fish and
clam species.
The proliferation has been widely discussed by Chinese internet users who
joked that the US government could save money on a planned dam to stop the
fish from reaching the Great Lakes if they just paid Chinese tour g... 阅读全帖
x****u
发帖数: 12955
35
来自主题: Military版 - 欧洲白人不生孩子的后果出现了

Natural selection only reward species for passing on the gene. Ordinarily,
higher IQ species ensure it's own survival by creating situations where the
lower IQ species would die out. But current social structure does the exact
opposite.
t****c
发帖数: 707
36
歐洲「掛牛頭賣馬肉」,美國也「假魚氾濫」,研究發現,在美國出售的「白呑拿魚」
(White tuna),原來有多達84%是多國禁食的「油魚」(escolar,學名異鱗蛇鯖)冒
充,多吃不單受騙,隨時會腹瀉、腸胃痙攣,過多的油份更可能會不斷從肛門流出。
普通呑拿魚鯛魚也作假
海洋保育組織Oceana報告自2010年起,經兩年調查化驗了1,215個海鮮樣本,基因測試
發現,多達33%樣本的基因與標籤不符,最令人震驚的,莫過於「油魚」充「白呑拿魚
」。研究指,巿面出售貼上「白呑拿魚」標籤的魚肉,有多達84%實際上是「油魚」,
壽司店更加是「假魚重災區」,74%食物標籤不正確,食肆出售的海鮮也有38%標籤不正
確。
除了白呑拿魚,普通呑拿魚作假也嚴重,多達59%是其他魚類冒充。不過最嚴重要數鯛
魚(snapper),多達87%的標籤為「鯛魚」的,實際上是其他魚類,他們在全美國搜購
的120個鯛魚樣本中,僅7個是真正的鯛魚。
假魚問題在全美國原來相當普及,各處情況相若,數據顯示嗜吃壽司的洛杉磯「假魚當
道」,竟多達55%;德州城巿奧斯汀49%;波士頓48%;邁阿密31%。檢驗官員揶揄:「對
消費... 阅读全帖
w********9
发帖数: 8613
37
来自主题: Military版 - 掏鸟掏了16只, 判了10年刑

threatened,
乱说。
看国际上两个权威的组织。都列于Appendix II
Falco subbuteo
https://cites.org/eng/app/appendices.php
FALCONIFORMES Eagles, falcons, hawks, vultures
FALCONIFORMES spp. (Except Caracara lutosa and the species of the
family Cathartidae, which are not included in the Appendices; and the
species included in Appendices I and III)
https://cites.org/sites/default/files/eng/cop/02/E02-Amendments-to-
Appendices.pdf
The abreviation "spp. is used to denote all species of a higher taxon.
http://www.cms.i... 阅读全帖
m**c
发帖数: 7349
38
来自主题: Military版 - 2米长的蚯蚓
But the largest earthworm in the world may be the giant Gippsland earthworm
of Australia (Megascolides australis), a rare species found in just five
locations. According to the Encyclopedia of Endangered Species, individuals
reliably reach 6.6ft (2m) long, with a diameter of 4cm.
Another species, the African giant earthworm (Microchaetus rappi), is also
reported to reach lengths of 6.6ft (2m) or more.
m**c
发帖数: 7349
39
来自主题: Military版 - 2米长的蚯蚓
But the largest earthworm in the world may be the giant Gippsland earthworm
of Australia (Megascolides australis), a rare species found in just five
locations. According to the Encyclopedia of Endangered Species, individuals
reliably reach 6.6ft (2m) long, with a diameter of 4cm.
Another species, the African giant earthworm (Microchaetus rappi), is also
reported to reach lengths of 6.6ft (2m) or more.
W*****B
发帖数: 4796
40
来自主题: Military版 - 很多被其它动物吃掉了
很多被其它动物吃掉了
Mystery meat: scientists are investigating the roadkill we never get to see
Thank goodness for scavenger animals.
That flattened raccoon or broken reptile might just be something to drive
past for motorists, but for scavenging animals, it’s breakfast. A new study
published today in the Journal of Urban Ecology is the first to look at the
role of these scavengers in performing roadkill removal—and its results
call into question whether we’re even counting roadkill right.
In the study, ... 阅读全帖
M*******n
发帖数: 10087
41
The existence of men has long puzzled scientists. Sexual reproduction is
inefficient and costly, yet the majority of multicellular species opt for
this method to keep their genes going. So why do men exist? Researchers from
the University of East Anglia (UAE) believe they may have finally cracked
it, suggesting that the evolutionary force known as ‘sexual selection’
plays a key role in improving population health and protecting us against
extinction.
“男人为什么会存在”长期以来一直困扰着科学家们。性繁殖效率低、成本高,但大多
数多细胞物种... 阅读全帖
r******e
发帖数: 344
42
来自主题: Military版 - 惊,全球变暖不再受人类控制!
5 Surprising Scientific Facts About Earth's Climate
1. Climate Has Always Changed—Always
All proxy temperature data sets reveal that there have been cyclical changes
in climate in the past 10,000 years. There is not a single climate
scientist who denies this well-established fact. It doesn’t matter what
your position on the causes and magnitude and danger (or not) of current
climate change is—you have to be on board on this one. Climate has always
changed. And it has changed in both directions, ... 阅读全帖
h*****u
发帖数: 16
43
There are more than 1,300 bat species distributed across six continents;
about 50 bat species live in national parks across the United States, and
Indonesia hosts 219 bat species — more than any other country. Bats make up
one-fifth of the mammal population on Earth, according to Bat Conservation
International
因为要杀人嫁祸给武汉病毒所。
A****7
发帖数: 902
44
来自主题: Military版 - Ralph Baric, PhD
https://www.med.unc.edu/microimm/directory/ralph-baric-phd-1/
Ralph Baric, PhD
Professor
Department of Epidemiology
3304 MHRC, School of Public Health
919-966-3895
Research
Most of the research in our laboratory has used coronaviruses as models to
study the genetics of RNA virus transcription, replication, persistence, and
cross species transmission. We have also been using alphavirus vaccine
vectors to develop novel candidate vaccines against caliciviruses. Specific
areas of interest include:
1... 阅读全帖
l****z
发帖数: 29846
45
来自主题: USANews版 - Social Darwinism and Barack Obama
By George Boykin
Consider Darwin's attitude about the black race. Darwin dreamed of a
future for mankind when the black races of man will become extinct, thus
enhancing the chances for the evolutionary advancement of the more "
civilized" races of man.
"At some future period, not very distant as measured by centuries, the
civilized races of man will almost certainly exterminate, and replace, the
savage races throughout the world. At the same time the anthropomorphous
apes, as Professor Schaaffh... 阅读全帖
l****z
发帖数: 29846
46
来自主题: USANews版 - Too many penguins
April 14, 2012 by Don Surber
That is correct. We have twice as many penguins in Antarctica than
scientists thought, a count by satellite revealed. Far from being a species
endangered by the carelessness of man, scientists say we have nearly 600,000
emperor penguins. The scientists counted 44 colonies of these birds —
including 7 previously unknown. Counting penguins in Antarctica is so easy,
I may apply for the job because they are black and white against the snows
of Antarctica.
From Science Da... 阅读全帖
l****z
发帖数: 29846
47
EPA and CA Drought: ‘What Civilized Society Destroys Its Own Food Source
For A Three-Inch Fish?'
April 13, 2015 - 4:01 PM
By Penny Starr
Since California Democratic Governor Jerry Brown imposed water restrictions
on the state’s residents on April 1, people have suddenly become interested
in what government officials have described as “one of the most severe
droughts on record.”
California Assemblywoman Shannon Grove (R).
But for months, Assemblywoman Shannon Grove -- who represents part of Kern
... 阅读全帖
l****z
发帖数: 29846
48
Published on CNS News http://www.cnsnews.com
The American Family: An Endangered and Disappearing Species
It is quite common to hear persons bemoaning the state of the family and of
families in America. Is that just hype and rhetoric? Are American families
really “disintegrating” today? Sadly, a lot of evidence seems to indicate
that traditional American families are an endangered and disappearing
species.
Several statistical indicia suggest that traditional families (husband and
wife with chi... 阅读全帖
l****z
发帖数: 29846
49
The Bundy Family and Armed Resistance to ‘Government Land Grabs’: Know the
Facts
by Brandon Darby and Logan Churchwell3 Jan 20166,504
Ammon Bundy, son of infamous Nevada rancher Cliven Bundy, is leading an
armed effort to occupy a headquarters building located in a federal wildlife
preserve near Burns, Oregon, as a reaction to a local criminal case between
ranchers and public land officials beginning in 2001.
What started as a community protest–over the extended sentencing of father
and son ranc... 阅读全帖
G*******h
发帖数: 4091
50
这么想就对了!你以为人类不是game species是什么呢? 不用天顶星人,现在某些黑
人玩的在街头随机选择行人猛击一拳然后逃跑的游戏不就是把其它人当game species了
?还有前两天田纳西74岁华人老翁被俩14、15岁黑人枪杀估计也是被当game species了。
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