This allows the pair to mate properly and stops the hen from staying in the nest.
这可以使这一对正常交配同时也阻止雌禽待在窝里。
By this means, they signal their level of aggression or readiness to mate.
通过这种方式，它们表明了自己的攻击性或交配意愿。
These will allow the pandas to travel the considerable distances they need to go to mate.
这将使大熊猫寻找配偶时可以走得更远。
On that day, there are many activities for couples to celebrate, showing their love to mate.
在情人节当天，情侣们会有许多庆祝活动，向另一半表达爱意。
She sent her people to mate with the more primitive inhabitants of Earth, thereby giving them the capacity for wisdom.
她派遣她的人去跟地球上更加原始的人紧密接触，从而给予了他们智慧的能力。
A fastener (26) is provided at the proximate end (16) of the plug constructed so as to mate (62) with the cover shield (60).
紧固件(26)设在构造的插头的近端(16)，以便与护罩(60)配合(62)。
The second pipe was set vertically, with a U-shaped section cut out of one side of the bottom end to mate with the horizontal pipe.
第二根管子倒竖，用一个U型的被切去底部的一边的部件跟平躺的那个管子并排。
For instance, in Costa Rica, the two most closely related species are white or yellow, which prefer to mate with those of their own color.
举例来说，在哥斯达黎加，两种亲缘关系最近的蛱蝶翅膀颜色是白色或者黄色，它们会根据颜色的不同“物以类聚”，进行配对。
The term matrimonial agencies mentioned in these Procedures refers to intermediaries that offer matchmaking services to mate-seeking clients.
本办法所称的婚姻介绍机构，是指为征婚当事人提供婚姻介绍服务的中介组织。
After 11 barren years, Ching-Ching died in 1985 and Chia-Chia was shipped off to Mexico Zoo to try (and fail) to mate with the resident panda there.
在11年不生育之后，青青于1985年去逝，而恰恰被送到了墨西哥动物园试图（但未成功）和当地的熊猫配对。
The two populations may even be splitting into two species. The blackcaps that winter in England tend to mate with each other when they return to Germany.
而这两个族群更有可能从此进化成两种不同的物种，那些冬季呆在英国的黑头莺在飞回德国繁衍后代时，更趋向于和“同道中鸟”喜结连理。
Humans then chose to mate individual animals or plants that carried the particular gene in order to make the desired characteristics more common or more pronounced.
之后人类选择具有独特基因的动物或植物个体进行配对，使它们那些为人所需的特性变得更为普遍和显著。
It is also unusual for exhibiting a high degree of parental care, while it is unique in that it is the female that approaches the male to mate, not the other way around.
呈现出的高度亲代抚育也不同寻常，而最特殊的一点是求偶中雌性接近雄性而不是相反。
She said in evolutionary terms it was desirable for a women to mate with a man whose genes were different from hers, as this was likely to produce more robust offspring.
她表示，从进化的角度来说，女性若能和与自己基因组合不同的男性结合是很好的选择，因为那样他们的下一代很可能更健康。
Her argument is that it is these early years where we are biologically most prepared to mate, but we don't do this because socially we want to wait longer to settle down.
她的逻辑是这样的，当我们年轻气盛的时候，是身体上最适合求偶的，但我们并不会这么做，因为从社会的角度，我们想等一等再安定下来。
She said: "Women perhaps need to be more discriminating when they choose who to mate with to produce offspring, as they invest more than males in the reproductive process.
她说：“女性可能在选择与之生育后代的伴侣时需要更有效地识别能力，所以她们在繁衍过程中具备了优于男性的某种能力。”
She said: "Women perhaps need to be more discriminating when they choose who to mate with to produce offspring, as they invest more than males in the reproductive process."
她说：“女性可能在选择与之生育后代的伴侣时需要更有效地识别能力，所以她们在繁衍过程中具备了优于男性的某种能力。”
They discovered, as they report in Behavioral Ecology and Sociobiology, that male hyraxes are doing far more than just repetitively communicating that they are ready to mate.
正如他们发表在行为生态学和社会生物学上的文章所述，动物学家发现雄性岩狸所做的比仅仅是求偶所需的反复的声音联系要多得多。
“One of the theories of how the Internet might affect dating is that it might erode the tendency of people to mate with people like themselves, ” said Professor Rosenfeld of Stanford.
互联网将怎样影响交友？其中一种说法是它将加重人们与和自己相似的人配对的趋势。
Males that had been separated from their male siblings did not display any of these symptoms, implying the response was tied specific-ally to mate separation, not just social isolation.
雄性田鼠与他们的同性兄弟的分离并没有显示任何类似的症状，这意味着上述反应是特异于伴侣间分离的而不只是由于社会孤立。
The only glimmer of hope was the outcome of experiments being made in England and the US to mate the Rolls-Royce Merlin engine to the airframe of the North American Aviation (NAA) P-51.
现在，最后一丝希望寄托在英国和美国同时进行的一项实验结果上，那就是为北美航空公司(NAA)设计的P - 51战斗机装上劳斯莱斯公司设计的“灰背隼”引擎。
The forms of communication that animals use are much more limited-they can express a desire to mate, or warn of the approach of a predator, but those calls cannot be combined to mean something new.
动物采用的交流形式非常有限，他们能发出求偶信号，或者入侵警报，但是那些信号不能被组合起来表达其它新含义。
They do reach the female alligator, who then goes to find and mate with the male.
它们确实会接触到雌性美洲鳄，然后雌性美洲鳄会去寻找雄性美洲鳄并与其交配。
Walking upright permitted the father to use his hands to gather food and carry it to his mate from a distance.
直立行走使父亲可以用手收集食物并从远处把食物带给他的配偶。
Evolutionarily speaking, people in this age group are at a stage in which they can prepare to find a mate and start their own family while separating from parents and striking out on their own.
从进化的角度来说，这个年龄段的人正处于这样一个阶段：他们可以在与父母分开、自谋生计的同时，为寻找伴侣和组建自己的家庭做准备。
Why mate with a second-class beau who cannot be bothered to bring you the fishy equivalent of roses and diamonds?
为何要和那些懒得为你献上玫瑰与钻石可疑的等价物的二等男友配对呢？
You will learn to talk about problems and be more patient with people you don't agree with—a friend, or a mate in your workroom or company.
你将学会探讨问题，对与你意见相左的人——朋友或办公室和公司的同事更有耐心。
He would rather be a plumber's mate and do a real job that requires doing than learning about hydrostatics sitting at a desk, without understanding what practical use they are going to be.
他宁愿做一个水管工的伙伴，做一份真正需要动手的工作，也不愿坐在桌子前学习流体静力学，而不知道这些东西有什么实际用途。
They uncovered clues to what was going wrong by researching a fascinating subject: how birth order affects not only your personality, but also how compatible you are with your mate.
他们通过研究一个有趣的课题发现了问题的线索：出生顺序不仅影响你的个性，还影响你和伴侣的和谐度。
They uncovered clues to what was going wrong by researching a fascinating subject: how birth order affects not only your personality, but also how compatible you are with your mate.
他们通过研究一个有趣的课题发现了问题的线索：出生顺序不仅影响你的个性，还影响你和伴侣的和谐度。
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