(担子菌的)二核体与单核体接合

Spider Widows 蜘蛛寡妇 Spiders give many of us the shivers, though they usually leave people alone. Sometimes these spectacular predators instead prey on each other. Learn more about when spiders serve themselves as dinner -- today on Earth and Sky.

发表于:2018-12-07 / 阅读(136) / 评论(0) 分类 (科普英语)Earth and Sky

Male nursery web spiders often woo potential lady-friends with gifts wrapped in silk. Mating may ensue, during which a female unspools the present, expecting to find a tasty treat. But the males can be unscrupulous. Some offerings contain inedible pl

发表于:2018-12-24 / 阅读(127) / 评论(0) 分类 Scientific American(十一)月

This is Scientific American 60 second science, I am Christopher Intagliata, got a minute? The most common types of ingested birth control contain estrogen. But the hormone doesnt just prevent human babies. It may be lowering numbers of frog babies, t

发表于:2018-12-24 / 阅读(115) / 评论(0) 分类 Scientific American(二)月

Is there any sound more annoying than the whine of a [dict]mosquito[/dict]? Yes, mosquitoes are pests through and through. But there's more to their irritating whine than meets the ear. For mosquitoes, that's the sound of love. It's well known by sci

发表于:2018-12-27 / 阅读(140) / 评论(0) 分类 英语时差8,16

Ok, here is the clinic for you guys out there on the Dos and Donts of finding emotional joy and carnal fulfillment in its most primitive form, if you get my drift. This male wildebeest dashes up to this herd of females, oblivious to the fact that ot

发表于:2018-12-30 / 阅读(256) / 评论(0) 分类 国家地理2008年

OK, we are back in the world of the Cyanea octopus. It's mating time. Here's your potential conquest. She doesn't know you're alive. She's too busy cleaning trash from her house. Now you are the perceptive type. You use your sensitive disks for any s

发表于:2018-12-30 / 阅读(153) / 评论(0) 分类 国家地理2007年

The mating ritual of each species on Earth has certain, well, peculiarities. As you might tell it from the name of the species itself, blue-footed boobies are no exception to this rule. Here in the Galapagos Islands, this pair of blue-footed boobies

发表于:2018-12-30 / 阅读(343) / 评论(0) 分类 国家地理2007年

Chances are, youre going to marry someone a lot like you. Similar intelligence, similar height, similar body weight. A new study of tens of thousands of married couples suggests that this isnt an accident. We dont marry educated people because we hap

发表于:2019-01-03 / 阅读(150) / 评论(0) 分类 趣味英语

How is technology changing love? I'm going to say almost not at all. 科技改变了爱吗?我认为没有。 I study the brain. I and my colleagues have put over 100 people into a brain scanner 我从事大脑研究。我和我的同事们对100多人

发表于:2019-01-03 / 阅读(115) / 评论(0) 分类 TED演讲科技篇

Chinese Ye wins 200m medley while Liu Zige dim BEIJING, Nov. 2 (Xinhua) -- London Olympic double winner Ye Shiwen claimed the women's 200-meter individual medley gold medal at the short course Beijing World Cup here on Friday, while Beijing Olympic c

发表于:2019-01-10 / 阅读(169) / 评论(0) 分类 英语新闻

Hopes Dim for US Ratification of Global Maritime Treaty Law of the Sea Convention Maritime defense, shipping, and natural resources extraction are but a few of the endeavors covered by the Law of the Sea Convention, which governs how nations use the

发表于:2019-01-11 / 阅读(140) / 评论(0) 分类 VOA标准英语2012年(七月)

1. The Bush administration and Congress are working through the weekend to hammer out a Wall Street rescue plan. President Bush is asking lawmakers to let the government buy 700 billion dollars in bad mortgages from US financial institutions for the

发表于:2019-01-11 / 阅读(200) / 评论(0) 分类 美联社新闻一分钟2008年(九)月

By Lisa Schlein Geneva 05 June 2008 Special United Nations and African Union envoys on Darfur say prospects for substantive peace talks aimed at ending the crisis in Sudan's conflict ridden province of Darfur are dim. The diplomats failed to get pea

发表于:2019-01-20 / 阅读(130) / 评论(0) 分类 VOA标准英语2008年(六月)

Ok, here is the clinic for you guys out there on the Dos and Donts of finding emotional joy and carnal fulfillment in its most primitive form, if you get my drift. This male wildebeest dashes up to this herd of females, oblivious to the fact that oth

发表于:2019-01-22 / 阅读(135) / 评论(0) 分类 自然百科2008年

I have a daughter, Mulan. And when she was eight, last year, she was doing a report for school or she had some homework about frogs. And we were at this restaurant, and she said, So, basically, frogs lay eggs and the eggs turn into tadpoles, and tadp

发表于:2019-01-24 / 阅读(134) / 评论(0) 分类 英语语言学习

NEW YORK, March 25 (Xinhua) -- Broadway (百老汇) in New York City of the United States will dim its lights on Friday night in memory of the iconic actress Elizabeth Taylor, who died on March 23 at the age of 79. Broadway theater marquees will

发表于:2019-02-03 / 阅读(151) / 评论(0) 分类 英语新闻

Women are 'genetically programmed to have affairs' 女性天生有出轨基因 Women are predisposed by their genetics to have affairs as back-up plans' if their relationships fail, according to a research paper. 研究结果表明,如果恋爱或者

发表于:2019-02-09 / 阅读(125) / 评论(0) 分类 实用英语

Oh! Yeah, yeah, yeah, yeah Yeah, yeah, yeah, yeah All the vixens stand in line Waiting for my fright night Be the new flesh for the sacrifice Screaming out the mating call I've become the lord of love I break your will I'll break your will for good I

发表于:2019-02-11 / 阅读(117) / 评论(0) 分类 英文摇滚歌曲

We found activity in a tiny, little factory near the base of the brain 我们发现在大脑底部附近有一块活跃的微小的区域 called the ventral tegmental area. 腹侧背盖区。 We found activity in some cells called the A10 cells, 其中

发表于:2019-02-14 / 阅读(186) / 评论(0) 分类 TED演讲科学篇

No matter the species, mating rituals are pretty weird. Take the praying mantis. After an intimate tryst, the female mantis bites its partners head off. But when it comes to sexual hijinks, nothing beats the garden snail. During sex, garden snails of

发表于:2019-03-06 / 阅读(224) / 评论(0) 分类 英语时差8,16
学英语单词
agglutinin
Altamahaw
amylit
applied-potential test
bank exchanges
belonites
blast traumas
boiler scale
bypass capacitors
CD i
Ceylon peridot
cholecystoptosis
cold cathode indicator tube
cold-soda process
commercial zine
concessionism
CPV
cracking ratio
de facto servant
decdropanax hainanensis (merr. et chun) chun
electro-magnetic compatibility (emc)
elegant style
extension hand reamer
facing surface
fatigue fracture mechanism
flash gas refrigeration
flight path recovery
flutings
fowl pox virus
gas-lubricated bearing
genus Cetraria
granny's bonnets
gullified
gymnogrammitis dareiformis(hook.) ching
hemigaster taiwana
high-frequency insulation
himu
home carers
honourless
immunoenzyme
impulse summation
impurity profile
INDEFOPS
inertia of population
international frequency assignment plan
intraocular injection
intrinsic derivative
jacobi iterated matrix
Jannings,Emil
labouring population
line synchro
linear estimation
Lingga, Archipelago
lubber line
lunilogical
machinery automation
meoli
military abductions
mill star
monelle
monthly summary
Newfounland Ridge
nucleonic level indicator
numbnuts
open ... big mouth
Parson Russell
periplasmic flagella
phenylglycollic acid
physiological anatomies
pilsicainide
pivoting support
premiation
pretermitted heirs
propulsion machinery order
quartz watch with LED
question words
RBFs
reflexmates
rough control
Salmonella heidelberg
scavenging circuit
semi-finalist
shakeable
shunt and series starter
sidelying
Skovorodinskiy Rayon
soarage
soonish
sperm-banks
spinor
steel town
transelementation
two-horizontal-reel trailed potato digger
tyrannizer
uk tv
umbilical ducts
variable geometry nozzle
varying-arca channel
vermiculated work
viscumneoside
voltage-divider
wire winch