年年赏樱有人伴 4/27/2007 22:50



我也像兰仔一样再招呼一声:

这个周日大家一定去植物园哈。我俩三点钟以后开晚会可以来找大家。别错过了良辰美景。

smile


先声明一下,我争取早点出会场,但不能保证。

所以不是组织活动,只是希望有好多人一起春游多美啊。
wildcrane at 4/27/2007 22:51 快速引用
牛 美景美画,再来个美人吧! Laughing
净荷 at 4/28/2007 02:52 快速引用
植物园樱花开了吗?
puppeteer at 4/28/2007 13:11 快速引用
净慧 :
牛 美景美画,再来个美人吧! Laughing


好,我再试一张 smile
wildcrane at 4/28/2007 15:47 快速引用
puppeteer :
植物园樱花开了吗?


开了,快去吧。
wildcrane at 4/28/2007 15:47 快速引用
support 你所说的植物园在哪里?
wblch at 4/28/2007 20:42 快速引用
我喜欢动物园,有人组织去动物园么?
金喜 at 4/28/2007 23:22 快速引用
金喜 :
我喜欢动物园,有人组织去动物园么?


I love too. Why don't you organize one. Success
geyser at 4/29/2007 13:58 快速引用
wblch :
support 你所说的植物园在哪里?


arnold arboretum

http://www.arboretum.harvard.edu/

and the map

http://www.google.com/maps?hl=en&output=search&q=Arnold+Arboretum:+Visitors+Information&near=Jamaica+Plain,+MA

Jamaica Pond is next to it. You can rent a boat at the Pond.
wildcrane at 4/30/2007 10:25 快速引用
geyser :
金喜 :
我喜欢动物园,有人组织去动物园么?


I love too. Why don't you organize one. Success

same here support support
thinkhard at 4/30/2007 10:38 快速引用
thinkhard :
geyser :
金喜 :
我喜欢动物园,有人组织去动物园么?


I love too. Why don't you organize one. Success

same here support support


好像从来没听说过麻州这边有什么好的动物园阿。Blue Hills山地下有一点点,除了那几只水
wildcrane at 4/30/2007 11:02 快速引用
thinkhard :
geyser :
金喜 :
我喜欢动物园,有人组织去动物园么?


I love too. Why don't you organize one. Success

same here support support


想起一首歌,
我们小手拉小手,一起去郊游
我每次唱到这里都跑调嘻嘻
金喜 at 4/30/2007 11:09 快速引用
wildcrane :


我觉得真要看咱就去非洲大草原,到人家动物的领地上看人家去。如何?


support
我最喜欢看毒蛇猛兽,狮子吃大象
金喜 at 4/30/2007 11:14 快速引用
金喜 :
wildcrane :


我觉得真要看咱就去非洲大草原,到人家动物的领地上看人家去。如何?


support
我最喜欢看毒蛇猛兽,狮子吃大象


狮子吃大象? 真有这回事?

要是真是如此,狮子也太不懂美味了吧 wink ?大象哪有小鹿小羊羔好吃阿?

你说的是喜欢挑战的母狮子?公狮子好像不狩猎吧?
wildcrane at 4/30/2007 11:23 快速引用
wildcrane :
金喜 :


support
我最喜欢看毒蛇猛兽,狮子吃大象


狮子吃大象? 真有这回事?

要是真是如此,狮子也太不懂美味了吧 wink ?大象哪有小鹿小羊羔好吃阿?

你说的是喜欢挑战的母狮子?公狮子好像不狩猎吧?


千真万确,我看电视上演的,一大群石子围着一头象,每个石子都蹦起来咬一小口,最后大象就轰的倒下了.


"公狮子好像不狩猎吧?"这个我倒忘记了.
金喜 at 4/30/2007 11:48 快速引用
金喜 :
wildcrane :
金喜 :


support
我最喜欢看毒蛇猛兽,狮子吃大象


狮子吃大象? 真有这回事?

要是真是如此,狮子也太不懂美味了吧 wink ?大象哪有小鹿小羊羔好吃阿?

你说的是喜欢挑战的母狮子?公狮子好像不狩猎吧?


千真万确,我看电视上演的,一大群石子围着一头象,每个石子都蹦起来咬一小口,最后大象就轰的倒下了.


"公狮子好像不狩猎吧?"这个我倒忘记了.


哎,大象真可怜,皮糙肉厚也没躲过这些粗糙的母狮子阿 cry
wildcrane at 4/30/2007 12:01 快速引用
Is this a new style of painting? 8)

wildcrane :



我也像兰仔一样再招呼一声:

这个周日大家一定去植物园哈。我俩三点钟以后开晚会可以来找大家。别错过了良辰美景。

smile
ayu at 4/30/2007 12:39 快速引用
support support


金喜 :
thinkhard :
geyser :
金喜 :
我喜欢动物园,有人组织去动物园么?


I love too. Why don't you organize one. Success

same here support support


想起一首歌,
我们小手拉小手,一起去郊游我每次唱到这里都跑调嘻嘻
ayu at 4/30/2007 12:40 快速引用
wildcrane :
金喜 :
wildcrane :
金喜 :


support
我最喜欢看毒蛇猛兽,狮子吃大象


狮子吃大象? 真有这回事?

要是真是如此,狮子也太不懂美味了吧 wink ?大象哪有小鹿小羊羔好吃阿?

你说的是喜欢挑战的母狮子?公狮子好像不狩猎吧?


千真万确,我看电视上演的,一大群石子围着一头象,每个石子都蹦起来咬一小口,最后大象就轰的倒下了.


"公狮子好像不狩猎吧?"这个我倒忘记了.


哎,大象真可怜,皮糙肉厚也没躲过这些粗糙的母狮子阿 cry

“公狮子不狩猎”纯是造谣了,每个狮群都是由公有母的,不过母狮子数量比较多。
金喜同学说的恐怕是前些日子pbs的discovery的节目吧,俺看了一部分,夜间拍的,挺吓人的说
狮子据说比较少攻击大象这么大的动物,不过碰上年老体弱的也是不会放过的。
象鼻据说是很一道美肴,sigh
thinkhard at 4/30/2007 13:11 快速引用
thinkhard :
wildcrane :
金喜 :
wildcrane :
金喜 :


support
我最喜欢看毒蛇猛兽,狮子吃大象


狮子吃大象? 真有这回事?

要是真是如此,狮子也太不懂美味了吧 wink ?大象哪有小鹿小羊羔好吃阿?

你说的是喜欢挑战的母狮子?公狮子好像不狩猎吧?


千真万确,我看电视上演的,一大群石子围着一头象,每个石子都蹦起来咬一小口,最后大象就轰的倒下了.


"公狮子好像不狩猎吧?"这个我倒忘记了.


哎,大象真可怜,皮糙肉厚也没躲过这些粗糙的母狮子阿 cry

“公狮子不狩猎”纯是造谣了,每个狮群都是由公有母的,不过母狮子数量比较多。
金喜同学说的恐怕是前些日子pbs的discovery的节目吧,俺看了一部分,夜间拍的,挺吓人的说
狮子据说比较少攻击大象这么大的动物,不过碰上年老体弱的也是不会放过的。
象鼻据说是很一道美肴,sigh


啊呦ou.... cry smile 不得
wildcrane at 4/30/2007 13:21 快速引用
[quote="thinkhard"]

金喜同学说的恐怕是前些日子pbs的discovery的节目吧,俺看了一部分,夜间拍的,挺吓人的说
/quote]

嗯,好象是,好看吧?
正因为是夜间,凶残中带着诡异
金喜 at 4/30/2007 13:36 快速引用
公狮子一看就不行,爆炸头威风是威风,跑起来阻力太大
Annie at 4/30/2007 14:15 快速引用
Annie :
公狮子一看就不行,爆炸头威风是威风,跑起来阻力太大


Laughing Laughing Laughing

可一头公狮子却有能力降伏那么多母狮子,咋回事儿?
wildcrane at 4/30/2007 14:42 快速引用
wildcrane :
Annie :
公狮子一看就不行,爆炸头威风是威风,跑起来阻力太大


Laughing Laughing Laughing

可一头公狮子却有能力降伏那么多母狮子,咋回事儿?


不用解释了,我想明白了 wink
wildcrane at 4/30/2007 14:50 快速引用
wildcrane :
Annie :
公狮子一看就不行,爆炸头威风是威风,跑起来阻力太大


Laughing Laughing Laughing

可一头公狮子却有能力降伏那么多母狮子,咋回事儿?


公狮子的作用就是吓虎其他动物.
母狮子个头小,碰到个大象啊,溪牛啊的,就不行了.
公狮子跑出来大吼一声,把他们吓跑.
真碰到成群的大象,公狮子就上去打架拉.

力量不够的才发展速度,比如母狮子.
breezy at 4/30/2007 14:52 快速引用
breezy :
wildcrane :
Annie :
公狮子一看就不行,爆炸头威风是威风,跑起来阻力太大


Laughing Laughing Laughing

可一头公狮子却有能力降伏那么多母狮子,咋回事儿?


公狮子的作用就是吓虎其他动物.
母狮子个头小,碰到个大象啊,溪牛啊的,就不行了.
公狮子跑出来大吼一声,把他们吓跑.
真碰到成群的大象,公狮子就上去打架拉.

力量不够的才发展速度,比如母狮子.


有道理。还可能因为他们力气大,母狮子愿意跟他们生小崽儿- 因为这样存活率高?

some interesting research all about lions here: http://www.lionresearch.org/biblio.html

等有时间时慢慢看。

Publications by Dr. Craig Packer

1982 Packer, C. & A.E. Pusey. Cooperation and competition in coalitions of male lions: kin selection or game theory? Nature. 296(5859), 740‑742.
http://www.nature.com/nature

1983 Packer, C. & A.E. Pusey. Adaptations of female lions to infanticide by incoming males. The American Naturalist. 121(5), 716‑728.
http://www.journals.uchicago.edu/AN/home.html

1983 Packer, C. & A.E. Pusey. Male takeovers and female reproductive parameters: a simulation of oestrus synchrony in lions (Panthera leo). Animal Behaviour. 31(2), 334‑340.
http://www.academicpress.com/anbehav

1984 Packer, C. & A.E. Pusey. Infanticide in carnivores. In: Infanticide: Comparative and Evolutionary Perspectives, G. Hausfater & S.B. Hrdy, eds., pp. 31‑42, Aldine, NY.

1986 Packer, C. The ecology of sociality in felids. In: Ecological Aspects of Social Evolution, D.I. Rubenstein & R.W. Wrangham, eds. pp. 429‑451. Princeton Press.

1987 O'Brien, S.J., J.S. Martenson, C. Packer, L. Herbst, V. de Voss, P. Jocelyn, J. Ott‑Jocelyn, D.E. Wildt, & M. Bush. Biochemical genetic variation in geographically isolated populations of African and Asiatic lions. National Geographic Research. 3(1), 114‑124.
http://www.nationalgeographic.com

1987 Packer, C. & A.E. Pusey. Intrasexual cooperation and the sex ratio in African lions. The American Naturalist. 130(5), 636‑642.
http://www.journals.uchicago.edu/AN/home.html

1987 Pusey, A.E. & C. Packer. The evolution of sex‑biased dispersal in lions. Behaviour. 101(4), 275‑310.

1987 Wildt, D.E., Bush, M., Goodrowe, K.L., Packer, C., Pusey, A.E., Brown, J.L., Joslin, P., & S.J. O'Brien. Reproductive and genetic consequences of founding isolated lion populations. Nature. 329(6137), 328‑331.
http://www.nature.com/nature

1988 Packer, C., L. Herbst, A.E. Pusey, J.D. Bygott, J.P. Hanby, S.J. Cairns, & M. Borgerhoff‑Mulder. Reproductive success of lions. In: Reproductive Success. T.H. Clutton‑Brock, ed., pp. 363‑383. University of Chicago Press, Chicago.

1988 Packer, C. & L.M. Ruttan. The evolution of cooperative hunting. The American Naturalist. 132(2), 159‑198.
http://www.journals.uchicago.edu/AN/home.html

1990 Averbeck, G.A., Bjork, K.E., Packer, C. & L. Herbst. Prevalence of hematozoans in lions (Panthera leo) and cheetah (Acinonyx jubatus) in Serengeti National Park and Ngorongoro Crater, Tanzania. Journal of Wildlife Diseases. 26(3), 392-394.
http://www.wildlifedisease.org

1990 Packer, C., Scheel, D., & A.E. Pusey. Why lions form groups: food is not enough. The American Naturalist. 136(1), 1-19.
http://www.journals.uchicago.edu/AN/home.html

1991 Brown, J.L., Bush, M., Packer, C., Pusey, A.E., Monfort, S.L., O'Brien, S.J., Janssen, D.L. & D.E. Wildt. Developmental changes in pituitary‑gonadal function in free‑ranging lions (Panthera leo) of the Serengeti and Ngorongoro Crater. Journal of Reproduction and Fertility. 91(1), 29-40.
http://www.jrf-journals.org.uk/jor/default.htm

1991 Gilbert, D., Packer, C., Pusey, A.E., Stephens, J.C. & S.J. O'Brien. Analytical DNA fingerprinting in lions: parentage, genetic diversity and kinship. The Journal of Heredity. 82(5), 378-386.
http://jhered.oupjournals.org

1991 Packer, C., Gilbert, D., Pusey, A.E. & S.J. O'Brien. A molecular genetic analysis of kinship and cooperation in African lions. Nature. 351(6327), 562-565.
http://www.nature.com/nature

1991 Packer, C., Pusey, A.E., Rowley, H., Gilbert, D.A., Martenson, J. & S.J. O'Brien. Case study of a population bottleneck: Lions of Ngorongoro Crater. Conservation Biology. 5(2), 219-230.

1991 Scheel, D. & C. Packer. Group hunting behaviour of lions: a search for cooperation. Animal Behaviour. 41(4), 697-710.
http://www.academicpress.com/anbehav

list太长,自己查吧。
wildcrane at 4/30/2007 15:28 快速引用
公狮子力量不见得大,模子大的不一定有肌肉。偶觉得母狮子看中公狮子是以貌取人,在一群光头中间,长发飘飘威风凛凛的当然抢眼啦,母狮子一看,想,自己的小孩也能有头发多好看啊。。。
Annie at 4/30/2007 15:55 快速引用
Annie :
公狮子力量不见得大,模子大的不一定有肌肉。偶觉得母狮子看中公狮子是以貌取人,在一群光头中间,长发飘飘威风凛凛的当然抢眼啦,母狮子一看,想,自己的小孩也能有头发多好看啊。。。


Laughing Laughing 看看这一篇,很有意思。


DIVIDED WE FALL: COOPERATION AMONG LIONS
Contents
Claiming Territory
Hunting
Surviving in the Serengeti
Further Reading


Although they are the most social of all cats, lions cooperate only when it is their own best interest

In the popular imagination, lions hunting for food present a marvel of group of choreography: in the dying light of sunset, a band of stealthy cats spring forth from the shadows like trained assassins and surrounds its unsuspecting prey. The lions seem to be archetypal social animals, rising above petty dissension to work together toward a common goal--in this case, their next meal. But after spending many years observing these creatures in the wild, we have acquired a less exalted view.

Our investigations began in 1978, when we inherited the study of the lion population in Serengeti National Park in Tanzania, which George B. Schaller of Wildlife Conservation International of New York Zoological Society began in 1966. We hoped to discover why lions teamed up to hunt, rear cubs and, among other things, scare off rivals with chorused roars. All this togetherness did not make much evolutionary sense. If the ultimate success of an animal's behavior is measured by its lifetime production of surviving offspring, then cooperation does not necessarily pay: if an animal is too generous, its companions benefit at its expense. Why, then, did not the evolutionary rules of genetic self-interest seem to apply to lions?

We confidently assumed that we would be able to resolve that issue in two to three years. But lions are supremely adept at doing nothing. To the list of inert noble gases, including krypton, argon and neon, we would add lion. Thus, it has taken a variety of research measures to uncover clues about the cats' behavior. Indeed, we have analyzed their milk, blood and DNA; we have entertained them with tape recorders and stuffed decoys; and we have tagged individuals with radio-tracking collars. Because wild lions can live up to 18 years, the answers to our questions are only now becoming clear. But, as we are finding out, the evolutionary basis of sociality among lions is far more complex than we ever could have guessed.

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wildcrane at 4/30/2007 16:10 快速引用
Annie :
公狮子力量不见得大,模子大的不一定有肌肉。偶觉得母狮子看中公狮子是以貌取人,在一群光头中间,长发飘飘威风凛凛的当然抢眼啦,母狮子一看,想,自己的小孩也能有头发多好看啊。。。


想起了狮子王 cry
金喜 at 4/30/2007 16:14 快速引用
刚注意到上篇文章有版权,想看的朋友们赶快下载下来,我10分钟之内会删掉。
wildcrane at 4/30/2007 16:44 快速引用
Copyright of Scientific American is the property of Scientific American Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use.

so if you are interested, I will email the article to you.
wildcrane at 4/30/2007 17:22 快速引用
玩得开心!

上周刚去过Franklin动物园。也算是踏青吧。
bysea at 4/30/2007 19:53 快速引用
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