M*****8
发帖数: 17722 | 1 【 以下文字转载自 Animals 讨论区 】
发信人: MB80528 (肥猫(Contrarian)[食MM而肥]), 信区: Animals
标 题: 鸟比哺乳动物进化得多，可以用来改造升级人类。
发信站: BBS 未名空间站 (Sat Jan 26 01:00:39 2019, 美东)
鸟比哺乳动物进化得多，可以用来改造升级人类。
鸟类的细胞和器官的功能都比人类的优秀太多太多。
例如，老鹰的视力是人类的50倍，可以看50倍更远。
鸟的骨骼又轻又坚固，可以大幅度强化人的骨骼材料。
另外，鸟的神经传达速度也远高于哺乳动物，例如人类。
其它的器官功能，例如肺，心脏，功能效率也远高于人类。
能把鸟的器官细胞优点转移给人类，必然是人类进化大跃进。
http://www.mitbbs.com/article_t/Animals/225881.html
如果视力能提升50倍，你会在意你的眼睛特别圆，像老鹰眼睛吗？ |
L******8
发帖数: 1211 | |
M*****8
发帖数: 17722 | 3
不赞同。神经速度快几倍肯定提升脑力。
骨骼轻，坚固；心脏，肌肉强大变超人。
其实如果鸟头有人头大，必定比人聪明。
再加如果有双手，早就超越人类文明了。
鸟祖先选择飞行，这是何其创意的概念。
【在 L******8 的大作中提到】
: 没啥用
: 身体去功能化是趋势
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v*******e
发帖数: 11604 | 4
鸟最大的缺点：会飞。因为会飞，拥有这个巨大的“优点”，它就不得不牺牲别的东西
，比如一个大号的脑。这决定了鸟不会成为智慧生物，神经速度快也没用。
【在 M*****8 的大作中提到】
:
: 不赞同。神经速度快几倍肯定提升脑力。
: 骨骼轻，坚固；心脏，肌肉强大变超人。
: 其实如果鸟头有人头大，必定比人聪明。
: 再加如果有双手，早就超越人类文明了。
: 鸟祖先选择飞行，这是何其创意的概念。
|
M*****8
发帖数: 17722 | 5
错，鸟的头脑功能每单位容量或质量比人类高。
所以如果给鸟脑与人类同样的质量，鸟脑更优秀。
人类的问题是太骄傲，太自大，无法客观评价鸟类。
【在 v*******e 的大作中提到】
:
: 鸟最大的缺点：会飞。因为会飞，拥有这个巨大的“优点”，它就不得不牺牲别的东西
: ，比如一个大号的脑。这决定了鸟不会成为智慧生物，神经速度快也没用。
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v*******e
发帖数: 11604 | 6
你后面都说得对，然而第一个字错了。鸟的最大缺点就是会飞，所以你没法给鸟脑与人
类同样的质量，它必须很小很轻，我说得完全正确。
【在 M*****8 的大作中提到】
:
: 错，鸟的头脑功能每单位容量或质量比人类高。
: 所以如果给鸟脑与人类同样的质量，鸟脑更优秀。
: 人类的问题是太骄傲，太自大，无法客观评价鸟类。
|
M*****8
发帖数: 17722 | 7
我没说人要有翅膀啊。
只须借鸟的部分DNA而已。
改进人类的细胞和器官品质。
【在 v*******e 的大作中提到】
:
: 你后面都说得对，然而第一个字错了。鸟的最大缺点就是会飞，所以你没法给鸟脑与人
: 类同样的质量，它必须很小很轻，我说得完全正确。
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o***o
发帖数: 11767 | |
M*****8
发帖数: 17722 | 9
错，鸟的细胞和器官组织全面超越哺乳动物。
鸟的体温比人类高，选于水的最高密度温度附近。
可以说鸟的有限体积和质量是对功能精益求精的杰作。
鸟类在地球的历史远超哺乳动物的人类，是温血动物之最。
人类目前试图用猪或羊的细胞和组织，但用鸟的可能效果更佳。
Three Human Chimeras That Already Exist
Some people—--such as fetuses that absorb a dead twin--—have two sets of
DNA
The news that researchers want to create human-animal chimeras has generated
controversy recently, and may conjure up ideas about Frankenstein-ish
experiments. But chimeras aren't always man-made—and there are a number of
examples of human chimeras that already exist.
A chimera is essentially a single organism that's made up of cells from two
or more "individuals"—that is, it contains two sets of DNA, with the code
to make two separate organisms.
One way that chimeras can happen naturally in humans is that a fetus can
absorb its twin. This can occur with fraternal twins, if one embryo dies
very early in pregnancy, and some of its cells are "absorbed" by the other
twin. The remaining fetus will have two sets of cells, its own original set,
plus the one from its twin. [Seeing Double: 8 Fascinating Facts About Twins]
These individuals often don't know they are a chimera. For example, in 2002,
news outlets reported the story of a woman named Karen Keegan, who needed a
kidney transplant and underwent genetic testing along with her family, to
see if a family member could donate one to her. But the tests suggested that
genetically, Keegan could not be the mother of her sons. The mystery was
solved when doctors discovered that Keegan was a chimera—she had a
different set of DNA in her blood cells compared to the other tissues in her
body.
A person can also be a chimera if they undergo a bone marrow transplant.
During such transplants, which can be used for example to treat leukemia, a
person will have their own bone marrow destroyed and replaced with bone
marrow from another person. Bone marrow contains stem cells that develop
into red blood cells. This means that a person with a bone marrow transplant
will have blood cells, for the rest of their life, that are genetically
identical to those of the donor, and are not genetically the same as the
other cells in their own body.
In some cases, all of the blood cells in a person who received a bone marrow
transplant will match the DNA of their donor. But in other cases, the
recipient may have a mix of both their own blood cells and donor ones,
according to a 2004 review paper in the journal Bone Marrow Transplantation.
A blood transfusion will also temporarily give a person cells from someone
else, but in a bone marrow transplant, the new blood cells are permanent,
according to the Tech Museum of Innovation in San Jose, California.
More commonly, people may exhibit so-called microchimerism—when a small
fraction of their cells are from someone else. This can happen when a woman
becomes pregnant, and a small number of cells from the fetus migrate into
her blood and travel to different organs.
A 2015 study suggested that this happens in almost all pregnant women, at
least temporarily. The researchers tested tissue samples from the kidneys,
livers, spleens, lungs, hearts, and brains of 26 women who tragically died
while pregnant or within one month of giving birth. The study found that the
women had fetal cells in all of these tissues. The researchers knew that
the cells were from the fetus, and not from the mother, because the cells
contained a Y chromosome (found only in males) and the women had all been
carrying sons.
In some cases, fetal cells may stay in a woman's body for years. In a 2012
study, researchers analyzed the brains of 59 women ages 32 to 101, after
they had died. They found 63 percent of these women had traces of male DNA
from fetal cells in their brains. The oldest woman to have fetal cells in
her brain was 94 years old, suggesting that these cells can sometimes stay
in the body for a lifetime.
https://www.scientificamerican.com/article/3-human-chimeras-that-already-
exist/
【在 o***o 的大作中提到】
: 鸟是恐龙，非常低等
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o***o
发帖数: 11767 | 10 我靠。水在4°c的时候比重最大，鸟的体温是四度?
恐龙年代就有哺乳动物了，那时候还没鸟呢。
民科你真牛逼
generated
【在 M*****8 的大作中提到】
:
: 错，鸟的细胞和器官组织全面超越哺乳动物。
: 鸟的体温比人类高，选于水的最高密度温度附近。
: 可以说鸟的有限体积和质量是对功能精益求精的杰作。
: 鸟类在地球的历史远超哺乳动物的人类，是温血动物之最。
: 人类目前试图用猪或羊的细胞和组织，但用鸟的可能效果更佳。
: Three Human Chimeras That Already Exist
: Some people—--such as fetuses that absorb a dead twin--—have two sets of
: DNA
: The news that researchers want to create human-animal chimeras has generated
|
|
|
M*****8
发帖数: 17722 | 11
我应该是记错了我读到的一篇文章的内容。
如果我没记错，恐龙加鸟在地球的历史比人类长。
【在 o***o 的大作中提到】
: 我靠。水在4°c的时候比重最大，鸟的体温是四度?
: 恐龙年代就有哺乳动物了，那时候还没鸟呢。
: 民科你真牛逼
:
: generated
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k*******r
发帖数: 16963 | |
m*******h
发帖数: 2005 | |
o***o
发帖数: 11767 | 14 鸟的历史当然比人长，这还用怀疑自己记没记错?
【在 M*****8 的大作中提到】
:
: 我应该是记错了我读到的一篇文章的内容。
: 如果我没记错，恐龙加鸟在地球的历史比人类长。
|
T***u
发帖数: 1468 | 15 会飞有用吗？太平洋上的孤岛一旦传入猫或老鼠，很多鸟类立刻死光
一两只老鼠可以咬死小信天翁，比老鼠重几百倍的成年信天翁就在旁边眼看着不把老鼠
赶走，原因是没见过老鼠不知道这是威胁 |
w********9
发帖数: 8613 | 16 如果让能再来一次，你选择做鸟还是做人？
从生存来看，人的各器官和能力的发展是最合理的。 |
w********9
发帖数: 8613 | 17 人的敏感度可以被训练提高
大部分盲人的听觉、触觉和嗅觉比正常人高很多！ |
M*****8
发帖数: 17722 | 18
米疣掌控的媒体，是铺天盖地的鼓励狗蝇纵欲，
鼓励洗脑狗蝇儿童和青少年手淫，滥交，嗑药。
盗魔经信徒的“忠言”从来必须反着理解和对待。
两千多年的盗魔经教义是去欺骗陷害洗劫狗蝇。
不但对狗蝇(即所有非疣)众恶奉行，口蜜腹剑。
如果你聪明杰出不中计，那就尽力歧视迫害你:
https://tinyurl.com/IvyAdmission
https://aryanity.com
https://antimatrix.org
【在 m*******h 的大作中提到】
: 鸟类性交没意思 我反对这种晋华
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