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全部话题 - 话题: mammal
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l****z
发帖数: 29846
1
来自主题: USANews版 - Pavlov's Voters
By Carol Peracchio
In the early twentieth century, Ivan Petrovich Pavlov, a Russian scientist,
became renowned for his landmark research of the digestive system in mammals
.
While Ivan Pavlov worked to unveil the secrets of the digestive system,
he also studied what signals triggered related phenomena, such as the
secretion of saliva. Pavlov became interested in studying reflexes when he
saw that the dogs drooled without the proper stimulus... For example, he
struck a bell when the dogs were... 阅读全帖
l****z
发帖数: 29846
2
MOSCOW – It was an Ice Age squirrel's treasure chamber, a burrow
containing fruit and seeds that had been stuck in the Siberian permafrost
for over 30,000 years. From the fruit tissues, a team of Russian scientists
managed to resurrect an entire plant in a pioneering experiment that paves
the way for the revival of other species.
The Silene stenophylla is the oldest plant ever to be regenerated, the
researchers said, and it is fertile, producing white flowers and viable
seeds.
The experiment pr... 阅读全帖
z*****a
发帖数: 9790
3
来自主题: USANews版 - 今天买枪被拒了
把电影Matrix里的Agent Smith这段话里的human species换成票蛆/左棍就太贴切了。
Agent Smith: I'd like to share a revelation that I've had during my time
here. It came to me when I tried to classify your species and I realized
that you're not actually mammals. Every mammal on this planet instinctively
develops a natural equilibrium with the surrounding environment but you
humans do not. You move to an area and you multiply and multiply until every
natural resource is consumed and the only way you can survive is to spread
... 阅读全帖
c******c
发帖数: 418
4
来自主题: WorldNews版 - Goldman Sachs 的最新战果:希腊
How Goldman Sachs Helped Greece to Mask its True Debt
http://www.spiegel.de/international/europe/0,1518,676634,00.html
看原文吧。 不服不行啊 ,美帝都被搞跨了,希腊还不是小菜一碟。
想起 “Matrix" 上 Agent Smith 一段很著名的话:
Agent Smith: I'd like to share a revelation that I've had during my time
here. It came to me when I tried to classify your species and I realized
that you're not actually mammals. Every mammal on this planet
instinctively develops a natural equilibrium with the surrounding
environment but you humans do not. You m
g*q
发帖数: 26623
5
【 以下文字转载自 Military 讨论区 】
发信人: gjq (不好啦,咕咚掉到井里啦), 信区: Military
标 题: 生物琐男教授被参议员点名批评了
发信站: BBS 未名空间站 (Wed Jul 13 11:26:17 2016, 美东)
https://www.aps.org/publications/apsnews/201607/waste-money.cfm
At a biology workshop in Washington, D.C., this past May, David Hu clicked
on an email from his university’s media relations team. They’d written to
tell him that a U.S. senator had just published a report calling his
research a waste of taxpayers’ funds. Out of 20 studies highlighted in
Senator Jeff Flak... 阅读全帖

发帖数: 1
6
来自主题: Faculty版 - Jan's lab : 这里有弟子么?

Download pdf published by SfN (Chapter from 'The History of Neuroscience in
Autobiography, Volume 8' edited by Larry R. Squire)
Yuh-Nung Jan's CV
Lily Jan's CV
Yuh-Nung Jan and Lily Jan
Birth
Family History and Growing Up
National Taiwan University
The Hiking Trip to Shitou in the Spring of 1967
Graduate School Application
Graduate Study at Caltech (1968锟974)
Seymour Benzer Lab (1974锟977)
Steve Kuffler锟絪 Lab at H... 阅读全帖
D******r
发帖数: 5237
7
来自主题: Parenting版 - 三岁娃问Elmo是不是哺乳动物
按照Sesame Street节目里的说法,Elmo是个monster。而monster是
跟human,birds,fish相提并论的,那么也应该是跟mammal并列
的,不属于animals,也不属于mammals。

发帖数: 1
8
来自主题: Returnee版 - 中国骨干人才正在流失海外
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
G****e
发帖数: 11198
9
来自主题: Arizona版 - Arizona Facts and Trivia
http://www.westwindairservice.com/facts/index.php
Arizona is a right-to-work state. The law states no person shall be denied
the opportunity to obtain or retain employment because of non-membership in
a labor organization.
The Arizona trout is found only in Arizona.
The saguaro cactus blossom is the official state flower. The white flower
blooms on the tips of the saguaro cactus during May and June. The saguaro is
the largest American cactus.
Arizona leads the nation in copper production.
Petri... 阅读全帖
i***0
发帖数: 8469
10
Frequently Asked Questions about
WET GODDESS: Recollections of a Dolphin Lover
Q: Is it actually possible for a human to have sex with a dolphin?
A: Well, SHE certainly seemed to think so...
Thomas Franci
Please understand, dolphins are NOT fish, they are placental mammals adapted
to life in the water.
They give birth to live young underwater and nurse underwater too!
Female dolphins have a vagina (albeit somewhat modified), clitoris and all
the other equipment you'd find on a woman tucked away ... 阅读全帖
m********l
发帖数: 4394
11
来自主题: Wisconsin版 - Like men, women are obsolete
A Possible Step Toward Setting the Biological Clock
Chinese Report Ability to Grow New Eggs in Female Mice
Scientists have produced strong new evidence challenging one of the most
fundamental assumptions in biology: that female mammals, including
women, are born with all the eggs they will ever have.
In a provocative set of experiments involving mice, Chinese researchers
have shown for the first time that an adult mammal can harbor primitive
cells in her ovaries that can become new eggs and prod
h******d
发帖数: 4761
12
来自主题: GunsAndGears版 - 有了这个估计可以跟棕熊拼一把了。
http://www.knifecenter.com/item/WIWASPKATB/wasp-injection-knife
WASP Injection Knife 5-1/4" Blade, Tapered Grip (Black)
Click to Enlarge No Reviews, Be the first to review this item!
Part Number: WIWASPKATB
Manufacturer: WASP Injection Systems Price:$499.95 Select Qty: 1 2 3 4 5
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Typically ships within 10 days

This item is not available for export.Share with Friends
Overview Reviews WIWASPKATB: Model 12 - Tapered Grip (Black)
WASP Injection Systems
A... 阅读全帖
d***o
发帖数: 761
13
来自主题: Running版 - 运动和上瘾 zt
摘要:
1)跑步可比吸大麻
2)runner's high 在其他动物也有
http://www.economist.com/node/21552536
Exercise and addiction
Fun run
People, it seems, have evolved to be addicted to exercise
Apr 14th 2012 | from the print edition
You expect me to what?!
AS THE legions of gym bunnies and jogging enthusiasts who race out into the
spring sunshine every year clearly demonstrate, running can be fun. More
specifically, running triggers the release of brain chemicals called
endocannabinoids that create a potent feeling of plea... 阅读全帖
D**********e
发帖数: 147
14
来自主题: Travel版 - 2010 南非世界杯游记 (二)
• wild mammals or birds hunted for sport or food.
• the flesh of these mammals or birds, used as food.
S*********t
发帖数: 522
15
来自主题: LeisureTime版 - 母亲节看了A.I.哭得稀里哗拉
这部电影让我想起Matrix里Agent Smith说过的话:
I'd like to share a revelation that I've had during my time here. It came to
me when I tried to classify your species and I realized that you're not
actually mammals. Every mammal on this planet instinctively develops a
natural equilibrium with the surrounding environment but you humans do not.
You move to an area and you multiply and multiply until every natural
resource is consumed and the only way you can survive is to spread to
another area. There is another o... 阅读全帖
E**********v
发帖数: 5509
16
来自主题: LeisureTime版 - 【又来了】几个电影
Main article: List of mammals displaying homosexual behavior
Selected mammals from the full list:
Bison[16]
Brown Bear[17]
Brown Rat[18]
Cavy[18]
Caribou[19]
Cat (domestic)[20]
Cattle (domestic)[21]
Chimpanzee[22][23][24][25]
Common Dolphin[26]
Common Marmoset[27]
Dog[28]
Elephant[29]
Fox[30]
Giraffe[3][31][32]
Goat[16]
Horse (domestic)[33]
Human[34][35][36]
Koala[37]
Lion[34]
Orca[26]
Raccoon[38]
没说性别,但是看着相当普遍,居... 阅读全帖
n******8
发帖数: 558
17
来自主题: LeisureTime版 - 【我希望】
我希望长着翅膀飞翔, 翻译一首 Emily Dickinson 的有关希望的诗, 算是我希望的
造句。被认为是她的代表作之一, 也附上我找到的分析。
“Hope” is the thing with feathers - (314)
BY EMILY DICKINSON
“Hope” is the thing with feathers -
That perches in the soul -
And sings the tune without the words -
And never stops - at all -
And sweetest - in the Gale - is heard -
And sore must be the storm -
That could abash the little Bird
That kept so many warm -
I’ve heard it in the chillest land -
And on the strangest Sea -
Yet - never - in Extremity,
It asked a crumb... 阅读全帖
a*********a
发帖数: 3656
18
on 5D2.
very high ISO, max aperture, AI servo, center AF point, no flash, 3 shot bursts. if possible get a rubber bood and lean lean onto the glass.
3 shot bursts increase the keep number with good focus, good composition. try avoid composition too tight, so you can crop to improve the compo later.
for fast moving mammals, you d have to anticipate their moves. start a
multishot burst before an interesting action. Good thing is that mammals need to surface to breath so the they typically are kep... 阅读全帖
c********y
发帖数: 30813
19
☆─────────────────────────────────────☆
Hongda (HongdaSYR) 于 (Sat Dec 4 23:57:15 2010, 美东) 提到:
全糊
☆─────────────────────────────────────☆
Notsaw (没看见 -- 系统发文延时 10 分钟) 于 (Sat Dec 4 23:57:56 2010, 美东) 提到:
手动对焦。。。hehe

☆─────────────────────────────────────☆
akodman (akodman) 于 (Sat Dec 4 23:59:21 2010, 美东) 提到:
对完鱼都跑啦
☆─────────────────────────────────────☆
gcool (CC) 于 (Sun Dec 5 00:01:57 2010, 美东) 提到:
手动对焦+1/200快门+CPL
☆─────────────────────────────────────☆
Hongda (Hong... 阅读全帖
s****a
发帖数: 361
20
The hippopotamus (Hippopotamus amphibius), or hippo, from the ancient Greek
for "river horse" (ἱπποπόταμος), is a large, mostly
herbivorous mammal in sub-Saharan Africa, and one of only two extant species
in the family Hippopotamidae (the other is the Pygmy Hippopotamus.) After
the elephant and rhinoceros, the hippopotamus is the third largest land
mammal and the heaviest extant artiodactyl.
H********g
发帖数: 43926
21
The skeletons of most mammals reach a certain size and then stop growing.
However, many animals, including some mammals, keep growing throughout their
lives. Kangaroos, for example, just keep growing and growing until they die
. Most fish, amphibians, lizards, and snakes are also indeterminate growers.
Until something, disease, a predator, or old age-takes them down, these
animals know no bounds when it comes to size.
What about that goldfish in your home aquarium? With plenty of food, no
predat... 阅读全帖
O*******d
发帖数: 20343
22
The ancestors of cetaceans are believed to have been the semiaquatic
pakicetids, no larger than wolves, of about 53 million years (Ma) ago.[11]
By 40 Ma ago, cetaceans had attained a length of 20 m or more in
Basilosaurus, an elongated, serpentine whale that differed from modern
whales in many respects and was not ancestral to them. Following this, the
evolution of large body size in cetaceans appears to have come to a
temporary halt, and then to have backtracked, although the available fossil
r... 阅读全帖
i******e
发帖数: 24
23
【 以下文字转载自 Biology 讨论区 】
发信人: gjq (不好啦,咕咚掉到井里啦), 信区: Biology
标 题: 生物琐男教授被参议员点名批评了 (转载)
发信站: BBS 未名空间站 (Wed Jul 13 11:26:58 2016, 美东)
发信人: gjq (不好啦,咕咚掉到井里啦), 信区: Military
标 题: 生物琐男教授被参议员点名批评了
发信站: BBS 未名空间站 (Wed Jul 13 11:26:17 2016, 美东)
https://www.aps.org/publications/apsnews/201607/waste-money.cfm
At a biology workshop in Washington, D.C., this past May, David Hu clicked
on an email from his university’s media relations team. They’d written to
tell him that a U.S. senator had just published a... 阅读全帖
c****g
发帖数: 3893
24
【 以下文字转载自 Wisdom 讨论区 】
发信人: dreamfly (舍身饲虎), 信区: Wisdom
标 题: The Top Ten Daily Consequences of Having Evolved
发信站: BBS 未名空间站 (Tue Nov 30 23:45:12 2010, 美东)
Read more: http://www.smithsonianmag.com/science-nature/The-Top-Ten-Daily-Consequences-of-Having-Evolved.html#ixzz16peHX5HW
From hiccups to wisdom teeth, the evolution of homo sapiens has left behind
some glaring, yet innately human, imperfections
* By Rob Dunn
* Smithsonian.com, November 19, 2010
From hiccups to wisdom teeth, our ow... 阅读全帖
D*****r
发帖数: 6791
25
来自主题: TrustInJesus版 - [转载] The Improbability of God
Much of what people do is done in the name of God. Irishmen blow each other
up in his name. Arabs blow themselves up in his name. Imams and ayatollahs
oppress women in his name. Celibate popes and priests mess up people's sex
lives in his name. Jewish shohets cut live animals' throats in his name. The
achievements of religion in past history -- bloody crusades, torturing
inquisitions, mass-murdering conquistadors, culture-destroying missionaries,
legally enforced resistance to each new piece of ... 阅读全帖
s*y
发帖数: 933
26
Wrong, your reasoning is not sound. You are trying to fit for an answer
after the fact. First of all, creation does not predict that a creator must
use common building blocks/materials to create various species. Second, no
text in Bible supports common building blocks/materials anyway. In fact,
one would expect, if there is a 全能的 God, that he would create life use
many different building blocks/materials. This would show his awesome power
that he is not limited to one material, and would ce... 阅读全帖
D*****r
发帖数: 6791
27
“The anatomical transition from reptiles to mammals is particularly well
documented in the key anatomical change of jaw articulation to hearing bones
. Only one bone, called the dentary, builds the mammalian jaw, while
reptiles retain several small bones in the rear portion of the jaw. We can
trace, through a lovely sequence of intermediates, the reduction of these
small reptilian bones, and their eventual disappearance or exclusion from
the jaw, including the remarkable passage of the reptilian... 阅读全帖
J*****3
发帖数: 4298
28

论创造论者视而不见的进化过渡形态
“The anatomical transition from reptiles to mammals is particularly well
documented in the key anatomical change of jaw articulation to hearing bones
. Only one bone, called the dentary, builds the mammalian jaw, while
reptiles retain several small bones in the rear portion of the jaw. We can
trace, through a lovely sequence of intermediates, the reduction of these
small reptilian bones, and their eventual disappearance or exclusion from
the jaw, including the remarkable pas... 阅读全帖
d******y
发帖数: 3668
29
Read more: http://www.smithsonianmag.com/science-nature/The-Top-Ten-Daily-Consequences-of-Having-Evolved.html#ixzz16peHX5HW
From hiccups to wisdom teeth, the evolution of homo sapiens has left behind
some glaring, yet innately human, imperfections
* By Rob Dunn
* Smithsonian.com, November 19, 2010
From hiccups to wisdom teeth, our own bodies are worse off than most because
of the differences between the wilderness in which we evolved and the
modern world in which we live.
Read more: http... 阅读全帖
h*****g
发帖数: 74
30
来自主题: Shanxi版 - 偶回来了。
Join The Chinese Cultural Club and The International Activities Club For One
Day Of Whale Watching and One Day Of Martha's Vineyard Island.
Join us for an unforgettable Cape Cod whale watching excursion on Cape Cod Bay
and Stellwagen Bank! Cape Cod is the feeding ground of the world's largest
mammals- whales! Discover the great whales of the North Atlantic during a
4-hour Capt. John Boats Cape Cod whale watch adventure. Among our whale and
marine mammal sightings are the Humpback Whale, Finback
l**********l
发帖数: 361
31
来自主题: Biology版 - 求文章三篇
Title: Non-invasive genetic identification of the red fox Vulpes vulpes in
the Shiretoko National Park, eastern Hokkaido, Japan
Source: Mammal study [1343-4152] Oishi yr:2010 vol:35 iss:3 pg:201 -207
http://apps.isiknowledge.com/full_record.do?product=UA&colname=
Title: Sex Determination and Individual Identification of American Minks (
Neovison vison) on Hokkaido, Northern Japan, by Fecal DNA Analysis
Source: Zoological science [0289-0003] Shimatani yr:2010 vol:27 iss:3 pg:243
-247
http://apps... 阅读全帖
h*******o
发帖数: 4884
32
"most animals at wild die long before they reach the beginning of their
reproductive senescence"
That is not true at least for mammals.
Is there any evidence to support IGF1's impacts on the length of reproductive competent period in vertebrates or mammals?
From I know, it is quite the opposite. IGF1 knockdown impairs animal fertility in both sexes although it is known to increase lifespan.

h*******o
发帖数: 4884
33
Again, small mammals most die from accidents or predation, not die of aging.
Large mammals have a much longer life span which surely is longer than
reproductive competent period.
As for caloric restriction, personally this is one sick way to extend life
span at the expense of life quality. This is particularly true at younger
ages.
s*******e
发帖数: 1389
34
来自主题: Biology版 - 老鼠前爪4个趾,后爪5个趾
老鼠前爪又不是只是用来打洞。还要做抓,握等比较复杂的动作。
从最初发育上来看,mammal有五个指头这点是很难改变的,估计和mamal Hedghog
signal peptide的diffusion pattern有关,甚至不单是mammal,从两栖纲的四足动物
开始,趾的数目就是五个。所以从进化上来说,HH signaling 产生的五指是脊椎动物
的最优解。
扯远一些,宇宙中的碳基生命如果可以访问地球的话,也几乎一定是五指的。
而在发育的后期,像老鼠前爪四个趾,马一个。这种程度的性状改变是非常容易的,个
人猜测进化速度会很快。之所以呈现现在的样子,就是各个物种最适合环境的状态。
再扯远一些,如果人一只手只有四个指头,8进制是否会更好的促进科学的产生?计算
机的出现?
k****s
发帖数: 1209
35
来自主题: Biology版 - 蜕皮素
原文在
http://www.skizit.biz/2013/07/21/ecdysone-insect-hormone-an-ind
Ecdysone Insect Hormone Switches on Disease
21 Jul 2013 | ECDYSONE
MORGELLONS:
INSECT HORMONE ECDYSONE TRIGGERS GENETIC CHANGES
TO BUILD NEW HAIR, SKIN, NAILS and CAUSE DISEASES
SkizitGesture-2013
Morgellons is a military grade entomological terror weapon being used to
torture and kill innocent civilians. The medical community has not been
informed about this disease and its complexity keeps it from being properly
identified, ... 阅读全帖
D*a
发帖数: 6830
36
来自主题: Biology版 - 生男生女是随机事件吗?
你自己看吧
1
00:00:01,200 --> 00:00:03,130
Hello, and welcome back to Animal
Behavior.
2
00:00:04,590 --> 00:00:06,189
When sexually reproducing animals
produce
3
00:00:06,189 --> 00:00:08,330
their offspring, they have a choice.
4
00:00:08,330 --> 00:00:13,030
They can produce either a son or a
daughter in any given reproductive event.
5
00:00:13,030 --> 00:00:15,730
In this lecture, we'll look at the
question of whether in certain
6
00:00:15,730 --> 00:00:17,330
circumstances it might pay parents t... 阅读全帖
g*q
发帖数: 26623
37
【 以下文字转载自 Military 讨论区 】
发信人: gjq (不好啦,咕咚掉到井里啦), 信区: Military
标 题: 生物琐男教授被参议员点名批评了
发信站: BBS 未名空间站 (Wed Jul 13 11:26:17 2016, 美东)
https://www.aps.org/publications/apsnews/201607/waste-money.cfm
At a biology workshop in Washington, D.C., this past May, David Hu clicked
on an email from his university’s media relations team. They’d written to
tell him that a U.S. senator had just published a report calling his
research a waste of taxpayers’ funds. Out of 20 studies highlighted in
Senator Jeff Flak... 阅读全帖
D**s
发帖数: 6361
38
【 以下文字转载自 Faculty 讨论区 】
发信人: gjq (不好啦,咕咚掉到井里啦), 信区: Faculty
标 题: 生物琐男教授被参议员点名批评了 (转载)
发信站: BBS 未名空间站 (Wed Jul 13 11:26:47 2016, 美东)
发信人: gjq (不好啦,咕咚掉到井里啦), 信区: Military
标 题: 生物琐男教授被参议员点名批评了
发信站: BBS 未名空间站 (Wed Jul 13 11:26:17 2016, 美东)
https://www.aps.org/publications/apsnews/201607/waste-money.cfm
At a biology workshop in Washington, D.C., this past May, David Hu clicked
on an email from his university’s media relations team. They’d written to
tell him that a U.S. senator had just published a... 阅读全帖
h*****b
发帖数: 492
39
来自主题: Biology版 - 这个好玩
Penis bone lost through evolution
Nature 540, 486 (22 December 2016) doi:10.1038/540486b
Our monogamous lifestyle may explain why humans, unlike many other mammals,
lack a penis bone.
The bone, called a baculum, rests at the end of the penis and is thought to
provide structural support and prolong copulation. Matilda Brindle and
Christopher Opie at University College London analysed the size of bacula in
nearly 2,000 species of mammal, including primates and carnivores. They
found that species t... 阅读全帖
f**d
发帖数: 768
40
来自主题: Neuroscience版 - eBook: From computer to brain
这是一本计算神经科学的优秀著作,全文拷贝这里(图和公式缺),有兴趣的同学可以
阅读
如需要,我可以分享PDF文件(--仅供个人学习,无商业用途)
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖
m***f
发帖数: 1622
41
http://www.pnas.org/content/early/2011/03/22/1019140108.
abstract?sid=99d16095-73c3-4bfd-8878-6f8a2ae325db
Maternal investment, life histories, and the costs of brain growth in
mammals
Robert A. Barton1 and Isabella Capellini2
+ Author Affiliations
Evolutionary Anthropology Research Group, Department of Anthropology,
Durham University, Durham DH1 3LE, United Kingdom
Edited by Charles F. Stevens, Salk Institute for Biological Studies,
La Jolla, CA, and approved February 28, 2011 (received for rev... 阅读全帖
f*******e
发帖数: 8974
42
来自主题: Animals版 - 贴两少见的动物
貌似,貌似是长颈鹿的近亲啊。。。
The okapi, Okapia johnstoni, is a giraffid artiodactyl mammal native to the
Ituri Rainforest, located in the northeast of the Democratic Republic of the
Congo, in Central Africa.
The giraffids are ruminant artiodactyl mammals that share a common ancestor
with deer and bovids. The biological family Giraffidae, once a diverse group
spread throughout Eurasia and Africa, contains only two living members, the
giraffe and the okapi. Both are confined to sub-saharan Africa: the giraffe... 阅读全帖
I***i
发帖数: 14557
43
来自主题: Animals版 - 小翠家族的新成员:奥巴马
呵呵,其实是以奥巴马命名的小翠:Obamadon
http://cosmiclog.nbcnews.com/_news/2012/12/10/15823225-ancient-
Ancient lizard that died out with the dinosaurs named after Obama
(In this artist's conception, the carnivorous lizard Palaeosaniwa stalks a
pair of hatchling Edmontosaurus dinosaurs as the snake Cerberophis looks on
from above, and the lizard Obamadon watches from below. Meanwhile, in the
background, a Tyrannosaurus rex encounters a Triceratops troop while an
asteroid streaks down to Earth.)
The mass extinc... 阅读全帖
k********k
发帖数: 5617
44
http://news.yahoo.com/disappearance-wildflowers-may-doomed-ice-
冰河時期北極野花消失 可能導致了巨獸滅絕
Disappearance of wildflowers may have doomed Ice Age giants
By Will Dunham2 hours ago
0shares
By Will Dunham
WASHINGTON (Reuters) - Flower power may have meant the difference between
life and death for some of the extinct giants of the Ice Age, including the
mighty woolly mammoth and woolly rhinoceros.
Scientists who studied DNA preserved in Arctic permafrost sediments and in
the remains of such ancient animals ... 阅读全帖
A********a
发帖数: 1168
45
很深奥的问题。放狗找到答案:
No one knows for sure. Mammals are overwhelmingly earth- colored- - mousy,
you could say. A few sort- of- green mammals do exist: Tree sloths turn
grayish- green when algae grows on their fur. Australia's ringtail opossums
have bands of black and yellow on their hair that can look a grizzled olive
drab.
A********a
发帖数: 1168
46
很深奥的问题。放狗找到答案:
No one knows for sure. Mammals are overwhelmingly earth- colored- - mousy,
you could say. A few sort- of- green mammals do exist: Tree sloths turn
grayish- green when algae grows on their fur. Australia's ringtail opossums
have bands of black and yellow on their hair that can look a grizzled olive
drab.
p****y
发帖数: 23737
47
在俄罗斯一年一度的的环境危害防御活动中宣布了一项耸人听闻的独立研究的结果。科
学家已经证明:转基因生物对哺乳动物是有害的。
4月15日至6月5日,在俄罗斯一年一度的的环境危害防御活动中宣布了一项耸人听闻的
独立研究的结果。科学家已经证明:转基因生物对哺乳动物是有害的。研究人员发现,
食用转基因食品的动物将失去繁殖能力。实验选择农业中广泛应用的含有不同比例转基
因成分的普通大豆,喂养具有快速繁殖率的坎贝尔仓鼠2年。另外一组比对仓鼠,喂以
在塞尔维亚难以发现的纯大豆,因为世界上95%的大豆是转基因大豆。
实验由全国基因安全协会和生态与环境问题研究所联合进行。Alexei Surov博士说
:“我们将仓鼠分成若干组,在笼中成对以普通食物喂养。第一组不喂任何东西,另一
组喂含不有转基因成分的大豆,第三组的含有一些转基因成分,第四组喂大量的转基因
食品。监控它们的行为、体重变化以及产仔时间。起初,一切顺利。但是当从幼仔中选
择了新的并继续按照前述方式进行喂养时,我们注意到了相当严重的影响。这些子代仓
鼠成长缓慢,性成熟缓慢。当他们生出下一代仓鼠时我们称其为第三代。用转基因食品
喂养的仓鼠... 阅读全帖
e****a
发帖数: 4783
48
来自主题: _K12版 - 借气人问一下
我家娃也开始问这个了:
姐姐:Daddy,最早的人是怎么来的?
我:最早的人啊,是猴子,后来有只猴子捡起一根着火的棍子
姐姐:是不是就像我们camping那样的?
我:是啊,然后那只猴子说:呵呵呵,我是人了!
姐姐:那最早的猴子是哪里来的?
我:最早是没有猴子的,是一种吃奶的动物,爬到树上去了,它说:呵呵呵,我是猴子了
姐姐:那最早的mammal是哪里来的?
我:最早没有mammal的,是鸭嘴兽那样的,像爬行动物一样,肚皮上面挤点奶喂小宝宝
姐姐:那最早的爬行动物是哪里来的?
我:最早是一些青蛙,因为它们住的水塘干了,它们就爬到地上,不去水里了
姐姐:那最早的青蛙是哪里来的?
我:最早是鱼,它们住的海水少了,只好爬到岸上
姐姐:那最早的鱼是哪里来的?
我:最早的是jellyfish
姐姐:那jelleyfish是谁变的?
我:是小虫子变得
姐姐:那小虫子是谁变的?
我:是细胞
姐姐:那细胞是哪里来的?
我:是让你弟弟现在打喷嚏的virus变的
姐姐:那virus是哪里来的?
我:以前啊,地球刚刚形成
姐姐:那地球是哪里来的?
我:(后悔刚才说地球形成了)是太阳之前的那个super no
g********n
发帖数: 2314
49
The sea lions camped out in PIER 39's West Marina have been endearingly
coined, "Sea Lebrities." The boisterous barking pinnipeds started
arriving in droves, taking over the docks in January 1990 shortly after
the 1989 Loma Prieta earthquake. At first they numbered from 10-50, but
due to a plentiful herring supply, available dock space and the marina’s
protected environment, the population grew to more than 300 within a few
months. Each winter, the population can increase up to 900 sea lions,
mo... 阅读全帖
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