c******n
发帖数: 4965 | 1 【 以下文字转载自 Mathematics 讨论区 】
发信人: creation (努力自由泳50m/45sec !), 信区: Mathematics
标 题: graph question: what is "genus" ?
发信站: BBS 未名空间站 (Wed May 29 18:58:51 2013, 美东)
tried to read wikipedia but still got very confused
in this paragraph:
"
The Asymmetric Traveling Salesman Problem on Graphs with Bounded Genus
Shayan Oveis Gharan∗ Amin Saberi∗
.....
We present the first constant-factor approximation algorithm for the
Asymmetric Traveling Salesman
Problem (ATSP) for metrics deᤙ... 阅读全帖 |
|
c******n
发帖数: 4965 | 2 【 以下文字转载自 Mathematics 讨论区 】
发信人: creation (努力自由泳50m/45sec !), 信区: Mathematics
标 题: graph question: what is "genus" ?
发信站: BBS 未名空间站 (Wed May 29 18:58:51 2013, 美东)
tried to read wikipedia but still got very confused
in this paragraph:
"
The Asymmetric Traveling Salesman Problem on Graphs with Bounded Genus
Shayan Oveis Gharan∗ Amin Saberi∗
.....
We present the first constant-factor approximation algorithm for the
Asymmetric Traveling Salesman
Problem (ATSP) for metrics deᤙ... 阅读全帖 |
|
c******n
发帖数: 4965 | 3 tried to read wikipedia but still got very confused
in this paragraph:
"
The Asymmetric Traveling Salesman Problem on Graphs with Bounded Genus
Shayan Oveis Gharan∗ Amin Saberi∗
.....
We present the first constant-factor approximation algorithm for the
Asymmetric Traveling Salesman
Problem (ATSP) for metrics defined by a weighted directed graph with a
bounded orientable genus.
This is a natural special case: consider a metric obtained by shortest path
distances in a city ... 阅读全帖 |
|
o**a
发帖数: 76 | 4 the roots of cos(sqrt(z)) is (n*pi+pi/2)^2
and \sum 1/(n*pi+pi/2)^2 converges
so I set
cos(sqrt(z)) = g(z) * \prod (1-z/(n*pi+pi/2)^2)
and take logrithmic derivative on both side to solve for g(z)
but I finally got g(z) = 1/cos(sqrt(z))
What's the problem here? What's the genus of cos(sqrt(z)) indeed? |
|
w******o
发帖数: 442 | 5 Please let me know the defination of 'genus'. |
|
B**e
发帖数: 60 | 6 You mean n(n-1)/2 edges, right, which is the number of edges a complete
graph with n nodes can have. For the genus of a complete graph, please
follow the link below.
http://mathworld.wolfram.com/GraphGenus.html
a |
|
|
发帖数: 1 | 8 【Filariasis
From Wikipedia, the free encyclopedia
Filariasis
Life cycle of Wuchereria bancrofti, a parasite that causes filariasis
Classification and external resources
Specialty Infectious disease
ICD-10 B74
ICD-9-CM 125.0-125.9
Patient UK Filariasis
MeSH D005368
[edit on Wikidata]
Filariasis is a parasitic disease caused by an infection with roundworms of
the Filarioidea type.[1] These are spread by blood-feeding black flies and
mosquitoes. This disease belongs to the group of d... 阅读全帖 |
|
发帖数: 1 | 9 12月27日 为什么我要替中国辩护
我要替中国辩护，并不是因为我是一个中国人，而是因为我知道中国就和这世界上绝大
数的国家一样，虽然有很多丑陋的现象，但是他们是受害者。就
象这个犯罪集团里很多的人一样，他们来自各种种族，他们可能充当了工具，但他们不
是制造这一切，谋划这一切的人。虽然经常会暴露中国产品出现问题。但要知道中国是
世界工厂，他们只是打工者，他们只是按照各种雇主提供的配方来生产，他们并不知道
他们会产生怎样的后果。或者这些工人知道后果，但他们只是奴隶，他们又如何去改变
这一切？ 所以，当我的调查不断往前推进的时候，不可避免地会涉及各国的企业，但
这并不表明是针对这个国家或这个国家的人民，而是针对一种社会现实和丑陋现象。就
拿菲律宾来说，菲律宾是一个犯罪猖獗的国家，有很多犯罪分子，但是菲律宾人民却是
这个集团的受害者，他们／她们被绑架，沦为了牺牲品，人体实验对象。一个日本人，
强奸上千名菲律宾女孩，却没有受到惩罚。以前我也提到过，有20个国家的名单，这20
个国家的人民其实都是受害者。现在他们把矛头对准中国，或许仅仅是因为我揭示了他
们图害世界人民的内幕，而我是一个中国人的缘... 阅读全帖 |
|
发帖数: 1 | 10 12月27日 为什么我要替中国辩护
我要替中国辩护，并不是因为我是一个中国人，而是因为我知道中国就和这世界上绝大
数的国家一样，虽然有很多丑陋的现象，但是他们是受害者。就
象这个犯罪集团里很多的人一样，他们来自各种种族，他们可能充当了工具，但他们不
是制造这一切，谋划这一切的人。虽然经常会暴露中国产品出现问题。但要知道中国是
世界工厂，他们只是打工者，他们只是按照各种雇主提供的配方来生产，他们并不知道
他们会产生怎样的后果。或者这些工人知道后果，但他们只是奴隶，他们又如何去改变
这一切？ 所以，当我的调查不断往前推进的时候，不可避免地会涉及各国的企业，但
这并不表明是针对这个国家或这个国家的人民，而是针对一种社会现实和丑陋现象。就
拿菲律宾来说，菲律宾是一个犯罪猖獗的国家，有很多犯罪分子，但是菲律宾人民却是
这个集团的受害者，他们／她们被绑架，沦为了牺牲品，人体实验对象。一个日本人，
强奸上千名菲律宾女孩，却没有受到惩罚。以前我也提到过，有20个国家的名单，这20
个国家的人民其实都是受害者。现在他们把矛头对准中国，或许仅仅是因为我揭示了他
们图害世界人民的内幕，而我是一个中国人的缘... 阅读全帖 |
|
发帖数: 1 | 11 12月28日 仔细阅读以下文章
或许这些文章可以告诉你们孩子被伤害病毒的答案。
Astellas Pharma 应该和这些人体实验有莫大的关系！
Founded 2005; 11 years ago
Headquarters 2-5-1, Nihonbashi-Honcho, Chūō-ku, Tokyo 103-8411, Japan
Key people Yoshihiko Katakana
(President and CEO)
Filariasis
From Wikipedia, the free encyclopedia
Filariasis
Life cycle of Wuchereria bancrofti, a parasite that causes filariasis
Classification and external resources
Specialty Infectious disease
ICD-10 B74
ICD-9-CM 125.0-125.9
Patient UK Filariasis
MeSH ... 阅读全帖 |
|
C*I
发帖数: 4736 | 12 相比较而言，石正丽的《Bat origin of human coronaviruses/蝙蝠是人类冠状病毒的
来源》是扎扎实实的抓蝙蝠，解剖蝙蝠，分离病毒，对比DNA,RNA后得出得结论。
请lobbock读一读，说一说，走两步！
http://virologyj.biomedcentral.com/articles/10.1186/s12985-015-0422-1
Review
Open Access
Published: 22 December 2015
Bat origin of human coronaviruses
Ben Hu, Xingyi Ge, Lin-Fa Wang & Zhengli Shi
Virology Journal volume 12, Article number: 221 (2015) Cite this article
Abstract
Bats have been recognized as the natural reservoirs of a large variety of
viruses. Special attention has ... 阅读全帖 |
|
发帖数: 1 | 13 12月27日 为什么我要替中国辩护
我要替中国辩护，并不是因为我是一个中国人，而是因为我知道中国就和这世界上绝大
数的国家一样，虽然有很多丑陋的现象，但是他们是受害者。就
象这个犯罪集团里很多的人一样，他们来自各种种族，他们可能充当了工具，但他们不
是制造这一切，谋划这一切的人。虽然经常会暴露中国产品出现问题。但要知道中国是
世界工厂，他们只是打工者，他们只是按照各种雇主提供的配方来生产，他们并不知道
他们会产生怎样的后果。或者这些工人知道后果，但他们只是奴隶，他们又如何去改变
这一切？ 所以，当我的调查不断往前推进的时候，不可避免地会涉及各国的企业，但
这并不表明是针对这个国家或这个国家的人民，而是针对一种社会现实和丑陋现象。就
拿菲律宾来说，菲律宾是一个犯罪猖獗的国家，有很多犯罪分子，但是菲律宾人民却是
这个集团的受害者，他们／她们被绑架，沦为了牺牲品，人体实验对象。一个日本人，
强奸上千名菲律宾女孩，却没有受到惩罚。以前我也提到过，有20个国家的名单，这20
个国家的人民其实都是受害者。现在他们把矛头对准中国，或许仅仅是因为我揭示了他
们图害世界人民的内幕，而我是一个中国人的缘... 阅读全帖 |
|
v******e
发帖数: 1715 | 14 carp的种类如下：
Types of carp
Carp swarm in great numbers to eat feed thrown by tourists in Urfa, Turkey.
Genus Abramis
Carp bream (Abramis brama)
Genus Barbodes:
Carnatic carp (Barbodes carnaticus)
Genus Carassius:
Crucian carp (Carassius carassius )
Prussian carp or Gibel carp (Carassius gibelio)
Goldfish (Carassius auratus)
Genus Cirrhinus:
Chinese mud carp (Cirrhinus chinensis)
Deccan white carp (Cirrhinus fulungee)
Hora white carp (Cirrhinus macrops)
Small scale mud carp (Cirrhinus microlepis)
M |
|
j*******7
发帖数: 6300 | 15 来自主题: TrustInJesus版 - 蝙蝠是鸟？ http://utahscience.oremjr.alpine.k12.ut.us/sciber00/7th/classif
History of Classification
Early classification systems probably grouped organisms as to whether they
were beneficial or harmful. Another ancient classification system recognized
5 animal groups - domestic animals, wild animals, creeping animals, flying
animals, and sea animals.
ARISTOTLE -
*4th century BC (384 to322 BC)
*Greek philosopher
*divided organisms into 2 groups - plants and animals
*divided animals into blood and bloodless... 阅读全帖 |
|
k*********r
发帖数: 362 | 16 最近在看disqualifying prior art
当genus claim里面的species被prior art reference disclose
MPEP 715.02 关于general rules as to generic claims:
"A reference or activity applied against generic claims may... be antedated
... by ... showing completion of the invention of only a single species,
within the genus, prior to the effective date of the reference or activity..
."
可是马上在MPEP 715.03里面Genus claim就说：
"... a reference or activity which discloses several species of a claimed
genus can be overcome ... only by ... 阅读全帖 |
|
w****1
发帖数: 4931 | 17 Actually, at genus 3 it is still okay - the moduli space of Jacobians cover
the entire Siegel upper half space
except for some singular locus of nonzero codimension. So one should be able
to express genus 3 string
amplitudes in terms of ratios of entire Siegel modular forms, I suppose.
Starting at genus 4 it really becomes
hopeless because little is known about the Teichmuller modular forms of
genus 4 and higher.
Z)
functions |
|
m**c
发帖数: 7299 | 18 【 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 |
|
发帖数: 1 | 19 12月28日，答案 2 （2011）
Filariasis
From Wikipedia, the free encyclopedia
Filariasis
Life cycle of Wuchereria bancrofti, a parasite that causes filariasis
Classification and external resources
Specialty Infectious disease
ICD-10 B74
ICD-9-CM 125.0-125.9
Patient UK Filariasis
MeSH D005368
[edit on Wikidata]
Filariasis is a parasitic disease caused by an infection with roundworms of
the Filarioidea type.[1] These are spread by blood-feeding black flies and
mosquitoes. This disease belongs... 阅读全帖 |
|
发帖数: 1 | 20 07 Nov 2019
Just as the clamor about Biogen’s seeking FDA approval for aducanumab with
one positive Phase 3 trial started to die down, a Chinese company garnered a
regulatory thumbs-up for its drug, also with one Phase 3 trial. On November
2, Shanghai Green Valley Pharmaceuticals announced that China’s National
Medical Product Administration (NMPA) had conditionally approved GV-971, aka
oligomannate, for the treatment of mild to moderate Alzheimer’s disease.
Full approval, expected to come in sp... 阅读全帖 |
|
a********a
发帖数: 3176 | 21 Bos (from Latin bōs: cow, ox, bull) is the genus of wild and domestic
cattle. Bos can be divided into four subgenera: Bos, Bibos, Novibos, and
Poephagus, but these divisions are controversial. The genus has five extant
species. However, this may rise to seven if the domesticated varieties are
counted as separate species, and nine if the closely related genus Bison is
also included.[1] Modern species of cattle are believed to have originated
from the extinct aurochs. |
|
b*s
发帖数: 82482 | 22 所以牛筋是我兄弟啊……
Bos (from Latin bōs: cow, ox, bull) is the genus of wild and domestic
cattle. Bos can be divided into four subgenera: Bos, Bibos, Novibos, and
Poephagus, but these divisions are controversial. The genus has five extant
species. However, this may rise to seven if the domesticated varieties are
counted as separate species, and nine if the closely related genus Bison is
also included.[1] Modern species of cattle are believed to have originated
from the extinct aurochs. |
|
m**c
发帖数: 7299 | 23 【 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 |
|
c**i
发帖数: 6973 | 24 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 |
|
t*******n
发帖数: 4445 | 25 Found from http://www.m-w.com/
1. Species: a category of biological classification ranking immediately below
the genus or subgenus, comprising related organisms or populations potentially
capable of interbreeding, and being designated by a binomial that consists of
the name of a genus followed by a Latin or latinized uncapitalized noun or
adjective agreeing grammatically with the genus name
2. Race: a division of mankind possessing traits that are transmissible by
descent and sufficient to char |
|
w****1
发帖数: 4931 | 26 There is some understanding of the structure of genus 3 closed string
amplitudes though incomplete. Apart
from the subtlety in summing over spin structures, a basic complication is
that genus 3 Teichmuller modular
forms are very different from Siegel modular forms and are much harder to
constrain from modular invariance.
Certain supersymmetry protected quantities can be calculated to higher genus
, such as topological string
amplitudes.
The major advantage, in principle, of pure spinor formalism... 阅读全帖 |
|
w****1
发帖数: 4931 | 27
Well, the Jacobian of a genus g Riemann surface is an Abelian variety, but
not all Abelian varieties are Jacobians
of some Riemann surface. The genus g string amplitude will be some Sp(2g, Z)
modular form defined on the
Teichmuller space of genus g Riemann surfaces, but may not admit simple
analytic continuation to the Siegel
upper half space. The constraints from modular invariance on these functions
would then be much weaker.
They have integer spins on the worldsheet, if that's what you are ... 阅读全帖 |
|
m**c
发帖数: 7299 | 28 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 large, crested, Asiatic
pheasants, belonging to the genus Euplocamus, and allied to the firebacks.
http://www.webster-dictionary.or... 阅读全帖 |
|
I***i
发帖数: 14557 | 29 http://latino.foxnews.com/latino/news/2012/11/16/giant-panda-fo
Giant Panda Fossils Found in Spain
Two fossilized mandibles and several teeth found in northeastern Spain
dating from 11.6 million years ago are the oldest remains found to date of
ancestors of the giant panda, a team of Spanish paleontologists said in an
article appearing in the journal PLOS ONE.
The team, headed by Juan Abella of the National Museum of Natural Sciences
in Madrid, includes researchers from the Catalan Institute of ... 阅读全帖 |
|
i*****s
发帖数: 15215 | 30 ☆─────────────────────────────────────☆
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 |
|
M*P
发帖数: 6456 | 31 这就是你错了，即使有lucy也是Homo genus，跟猿差上百万年。其他homo genus都灭绝
了，就剩homo sapien 了。 |
|
s******8
发帖数: 7105 | 32 自己吹牛， 看了别人的论文仿制而已。
Gentamicin is produced by the fermentation of Micromonospora purpurea. It
was discovered in 1963 by Weinstein, Wagman et al. at Schering Corporation
in Bloomfield, N.J. working with source material (soil samples) provided by
Rico Woyciesjes.[21] Subsequently it was purified and the structures of its
three components determined by Cooper, et al., also at the Schering
Corporation. It was initially used as a topical treatment for burns at the
Atlanta and San Antonio burn units an... 阅读全帖 |
|
|
m*****3
发帖数: 13701 | 34 实在忍不住了，笑得不行。
Genus - 属（拉丁语：genus）是生物分类法中的一级，位于科和种之间。 |
|
g***e
发帖数: 14217 | 35 科、属、种都不一样，所以说是完全不同的植物。
Chilean Jasmine
Family: Apocynaceae
Genus: Mandevilla
Species: laxa
Asian Jasmine
Family: Oleaceae
Genus: Jasminum
Species: sambac |
|
f*1
发帖数: 837 | 36 http://en.wikipedia.org/wiki/Oxalis
A characteristic of members of this genus is that they contain oxalic acid (
whose name references the genus), giving the leaves and flowers a sour taste
which can make them refreshing to chew.[3] In very large amounts, oxalic
acid may be considered slightly toxic, interfering with proper digestion and
kidney function. It should be noted, however, that oxalic acid is also
present in more commonly consumed foods such as spinach, broccoli, brussel
sprouts, grape... 阅读全帖 |
|
n******s
发帖数: 533 | 37 美国梨, 中国梨和豆梨都属于梨属(Genus：Pyrus)，可以互相嫁接。豆梨是可以作为砧
木嫁接其它梨树。
李子（plum）属于李属（Genus: Prunus），不能和梨嫁接。桃，杏，樱桃也属于李
属，互相之间可以嫁接。
梨的族（Tribe）和亚族（Subtribe）都是Malinae，和山楂（hawthorn），quince相同
，也许可以互相嫁接。 |
|
E**********v
发帖数: 5509 | 38 fox
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Canidae
Subfamily: Caninae
Tribe: Vulpini
Genus: Vulpes
wolf
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Canidae
Subfamily: Caninae
Tribe: Canini
Genus: Canis
Species: C. lupus |
|
H********g
发帖数: 43926 | 39 要得！这么好的神学启蒙很适合美国学童。
英文版如下
http://www.fyears.org/2010/02/buffalible-genesis/
1:01 In the beginning God created the heaven and the earth.
1:02 The singularity was without form, and void, and all the laws of physics
were not suitable.
1:03 And God said, Let there be light, and there was light. And God saw the
light, that it was good; and God set the speed of light to 299,792,458 m/s,
and it was always the same, no matter how the reference changing.
1:04 God said that light in the wavelength between... 阅读全帖 |
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n********k
发帖数: 2818 | 40 no offense, I could well be wrong but I don't think you have understood him
and his behavior yet...he is a
genus and rarely a genus would be a normal individual. So we as ordinary
people simply shouldn't use our
own logy to comprehend him...if we are curious, we shall abandon our own
prejudice and our own identity,
and try to go into their soul and their experience, that's the only way we
might see how and why it might have
happened... |
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c**i
发帖数: 6973 | 41 Eureka!
I finally find out what your tree--and flowers--is.
(1) I consider many possibilities.
One was the original posting was a hoax. I live in Boston, Massachusetts. On
the assumption that late April in Boston is about late October in Sydney,
Australia, I found it hard to believe that trees are so green in Sydney, let
alone flowers in bloom. (In boston, leaves change color and started falling
in mass about mid-October.)
(a) Sydney
http://en.wikipedia.org/wiki/Sydney
Section 2.3 Climate indica... 阅读全帖 |
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l**********1
发帖数: 5204 | 44 利用人工智能免疫系 likes CD44 plus Hyaluronan (hyaluronic acid, HA) is a
linear naturally occurring polysaccharide 钓3kDa左右的多肽的鱼
可以不通过分离而直接挑出peptide or protein来特异反应--just matrix two cents.
References:
1)
Erickson M, Stern R.
Chain gangs: new aspects of hyaluronan metabolism.
Biochem Res Int.2012:893947.
//www.ncbi.nlm.nih.gov/pubmed/22216413
and
2)
Chaim OM et al.(2011)
Brown Spider (Loxosceles genus) Venom Toxins: Tools for Biological Purposes.
Toxins (Basel). 3: 309-344
Abstract
Venomous animals use ... 阅读全帖 |
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w*******5
发帖数: 831 | 45 10个包子求同一个杂志的四篇文章，请发送到w**********[email protected]，谢谢！
1. DENMAN (S.), BRADY (C.), KIRK (S.), CLEENWERCK (I.), VENTER (S.),
COUTINHO (T.) and DE VOS (P.): Brenneria goodwinii sp. nov., associated with
acute oak decline in the UK.
Int. J. Syst. Evol. Microbiol., 2012, 62, 2451-2456.
2. NABHAN, S., DE BOER, S. H., MAISS, E. and WYDRA, K. 2013. Pectobacterium
aroidearum sp. nov., a soft rot pathogen with preference for
monocotyledonous plants. Int.J.
Syst. Evol. Microbiol., 63, 2520-2525.
3. KIM, P. S., S... 阅读全帖 |
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a***a
发帖数: 12425 | 46 【珍稀动物】萌萌大美瞳---超濒危的绒哆倭丛猴
前两天看到的一个关于世界二十五种最濒危的灵长动物的帖子，看到第一个猴子的图片
一下子就被吸引了。它有一对扇风耳，一双滚圆的眼睛，一只可爱的鼻子，一条长长的
刷子似的大尾巴，双手双脚紧紧地抓在一个树枝上面。这种猴子名叫Rondo Dwarf Gala
go (Galagoides Rondoensis)，在网上查了一下，中文翻成了一个很拗口的名字：绒哆
倭丛猴。
绒哆倭丛猴是一种体重仅两盎司（六十克）的小型物种，属于灵长目原猴亚目，和狐猴
、懒猴、眼镜猴等萌物们亲缘关系不远。直到一九九六年人们才知道这类物种的存在，
并从那时起把它们视为丛猴种类中最小的一种。如今绒哆倭丛猴已经从濒危类变为极度
濒危类动物。
绒哆倭丛猴的大眼睛和大耳朵不单单是用来卖萌，主要是用于在夜间活动，吃昆虫和果
实，而白天它们就会搭一个窝在树上睡觉。绒哆倭丛猴居住在非洲大陆坦桑尼亚海岸的
一些旱生森林中，它们的家并不需要多大的地方。尽管有些这类森林是在国家公园的范
围内，然而，人类的开荒活动，不管是为了种田、还是获得木材和木炭，让它们的小小
家园变得支离破碎、狭窄不堪。... 阅读全帖 |
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d******a
发帖数: 32122 | 47 狐狸和狗没法杂交
相差太大，都不是一个亚科的
能跟狗杂交的，只有狼 澳大利亚野狗 金豺 非洲三色犬（无实例）豺狗（无实例）
都有７８条染色体
从图上可以看出，狗和大灰狼是同一种动物，图上跟他们最近的是郊狼，然后依次是金
豺，埃塞俄比亚狼（应该也是种豺），豺狗和三色犬。
而黑背豺和侧纹豺有７４条，即便杂交，也会类似马（６４）和驴（６２）。
狐狸只有30多条
http://2.bp.blogspot.com/-PV8froOj_7U/TjkUecXRk9I/AAAAAAAACmY/vo18yeLfFpo/s1600/canid_phylogeny.jpg
A List of Number of Chromosomes of Various Organisms
African Wild Dog 78
Alfalfa 16
Algae 148
Amoeba 13
American Badger 32
American Marten 38
American Mink 30
Aulacantha (protozoa) 1600 [highest]
Arabidopsis thaliana 10
B... 阅读全帖 |
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P*****J
发帖数: 1745 | 48 照得真好！
Wood Duck和鸳鸯是鸳鸯属(Aix genus)里仅有的两个物种。两个物种的雄鸟那么不同，
但又都是那么好看。想一想如果Aix也和鸭属(Anas genus,包括Mallard, blackduck,
shovelers 等等)一样全球好几十种，迁徙季节去池塘可以一次看见十几种，鸭子风景
线就更美丽了。 |
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I***i
发帖数: 14557 | 49 http://en.wikipedia.org/wiki/Spiny_orb-weaver
Spiny orb-weaver
From Wikipedia, the free encyclopedia
Spiny orb-weavers
Spiny orb-weavers is a common name for Gasteracantha, a genus of spiders.
They are also commonly called Spiny-backed orb-weavers, due to the prominent
spines on their abdomen (cf. genus Isoxya). These spiders can reach sizes
of up to 30mm in diameter (measured from spike to spike). Although their
shell is shaped like a crab shell with spikes, it is not to be confused with
a crab... 阅读全帖 |
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l******i
发帖数: 4666 | 50 【 以下文字转载自 USANews 讨论区 】
发信人: liangzhi (良知), 信区: USANews
标 题: 搞笑: 恐同症（homophobia）的正确理解
发信站: BBS 未名空间站 (Wed Aug 18 22:33:56 2010, 美东)
一些反人类的老GAY,最反感别人说它们有病了,最近但却制造出这个侮辱别人有病的词
homophobia.
据说这个词是由homo+phobia组成的,并它理解成the hatred or fear of homosexuals.
文盲了,这词只有Homo 没有sex,老GAY们要能在没有sex的情况下生活,就是正常人了.
其实恐同这就是个风车,老GAY虽然恶心,但有谁去诚心恨或还怕它呢?根本不值得,所谓
的反同人士,充气量是把老GAY恶心的真实想法公开表达,这个感觉就跟看臭虫一样,谁能
说算得上臭虫phobia?真正恐同的是那些被老GAY威胁一下就什么也不敢说甚至违心地说
老GAY不恶心的人.
随便google一下,Homo is the genus that includes modern humans and speci |
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