The sperm sample is checked under the microscope before insemination is carried out.
进行受精前用显微镜检查精子样本。
Conception occurs when a single sperm fuses with an egg.
当一个精子和一个卵子结合时受孕就发生了。
A female stores sperm and can determine the sex of each egg she lays by fertilizing it or leaving it unfertilized.
雌性储存精子，可以通过受精或不受精来决定每一个卵细胞的性别。
For a long time, we assumed that all whales that had teeth including sperm whales and killer whales were closely related to one another.
在很长一段时间里，我们认为所有有牙齿的鲸鱼，包括抹香鲸和虎鲸，彼此都是密切相关的。
Sperm whales are emperors of the ocean.
抹香鲸是海洋之王。
Let's think about what we can do to save sperm whales.
想想为了拯救抹香鲸，我们能做些什么？
On this butterfly egg, the lacy pattern marks the micropyle, where sperm enters.
在这种蝴蝶卵上，花边图案标记精子进入的卵孔。
Production of testicular output sperm and spermatic fluid is also larger in polygamous animals.
在一夫多妻的动物中，睾丸输出的精子和精浆的量也较大。
The objective is to evaluate the role of sperm kinematic parameters in the hyperactivation of Guinea pig spermatozoa.
目的是评估精子运动学参数在豚鼠精子过度激活中的作用。
This couldhappen because a chimeric twin that grew from an egg which his sperm did notfertilise would nonetheless have some skin cells containing his genes.
发生此类现象是因为一个嵌合双胞胎会产生于没有得到雄性动物施精的卵, 但它会在某些皮肤细胞中含有该雄性动物的遗传基因.
It takes about 175, 000 sperm cells to weigh as much as a single egg cell.
一个卵细胞的重量相当于约175 000个精细胞的重量。
Because children born from donor sperm or eggs in the UK can now trace their biological parents when they turn 18, potential donors have been deterred, it is claimed.
由于如今的英国，捐精或捐卵人工繁育的后代在年满18岁后可以查询到自己的生物学父母，很多潜在捐精者对捐精踌躇不前。
The scientists also found that darker whales, in this case sperm and fin whales, tended to not get sunburned as much as lighter blue whales.
科学家还发现深颜色的鲸鱼，比如长须鲸和抹香鲸，不会像浅蓝色的鲸鱼那样遭受同等程度的灼伤。
Long believed to exist only in the brains of humans and other great apes, in 2006 spindle cells were discovered in the same brain areas in humpback whales, fin whales, killer whales, and sperm whales.
长久以来梭形细胞被认为只存在于人类和其他类人猿的大脑中，直到2006梭形细胞也在座头鲸、长须鲸、虎鲸和抹香鲸大脑的同样区域上被发现。
Fueling the evolution of cetacean communication is an ability, observed in dolphins, humpback whales and sperm whales, to pass songs and codas between generations and individuals.
通过观察海豚、驼背鲸和抹香鲸得知，促进鲸目动物通信进化的是一种在每代以及每个个体间传递鸣叫和强音的能力。
Living alongside the largest sharks ever known, the raptorial-meaning actively hunting-whale measured about 60 feet (18 meters) in length, about as big as a modern male sperm whale.
它们曾和史上已知的最大鲨鱼，猛鲨——意味着嗜猎分子，一起生活过。该鲸鱼有60英尺长(约合18米)，堪比现代成熟雄性抹香鲸。
Do you, for instance, cite the studies that report adverse effects on sperm viability and motility, due to exposure to cell phone radiation or the studies that showed no — or mixed — results?
对于手机辐射问题，你是否也引用过那些说辐射影响精力活力的研究报告，或者其他根本没有发现不良影响的研究，又或者结果并不明确的那些？
Sperm whale poop helps fertilize algae, which in turn suck up carbon dioxide via photosynthesis.
抹香鲸向藻类施肥，反过来，又通过光合作用吸收二氧化碳。
But previous sightings and sound recordings closer to the surface suggested that the sperm whales are relatively few and far between.
但是之前位于水面附近的目击和录音都说明抹香鲸在那儿相对稀少。
The largest toothed whales on Earth, sperm whales are listed as vulnerable-or facing a high risk of extinction in the wild-by the International Union for Conservation of Nature.
作为地球上最大型的齿鲸类，抹香鲸已经被国际自然保护联盟列入了高灭绝风险的野外物种之列。
Sperm whales throughout the Pacific Ocean carry evidence within their bodies of exposure to multiple man-made pollutants, according to a new Environmental Health Perspectives study.
根据《环境与健康展望》最新研究显示，生活在太平洋里的抹香鲸身体里携带多种人造污染物质。
A study in 2006 found older men are more likely to father dwarves, due to an age-related genetic mutation in their sperm.
2006年的一项研究发现大龄男士生养侏儒子女的机率更大，这是由他们与年龄相关的基因突变造成的。
They'll tear the throats from grey whale calves, and have even been known to take chunks out of sperm whales - the largest predators that ever lived.
它们会撕裂小灰鲸的喉咙，甚至公认会从抹香鲸——有史以来最大的天敌身上撕下大块的肉。
That in turn stands to have an effect on the food chain, since giant squid provide the meal of choice for endangered sperm whales.
其后果又对食物链产生影响，因为巨型鱿鱼是濒危抹香鲸的首选食物。
Just to make sure you follow through, your paychecks arekept in escrowby the sperm bank until the end of the contract.
为了让你遵守契约，直到合同结束，你才能拿到钱。
Guangzhou holy and hospital urology experts, according to different symptoms of the disease dead sperm, can choose different dead sperm disease treatment method, so as to achieve satisfactory results.
广州圣亚泌尿外科医院专家介绍，根据死精症的不同症状，可以选择不同的死精症的治疗方法，这样才能达到满意的治疗效果。
When, in the summer of 2007, I dove into the three-mile deep waters off the Azores and swam with sperm whales, my overwhelming reaction was to offer my apologies.
2007年当我在亚速尔群岛海边跳入3米深的水中与抹香鲸共泳时，我无法抑制地想向他表达歉意。
By studying one (Anopheles gambiae) of the 40 mosquito species that spread the disease in nature, researchers created 100 male mosquitoes without sperm.
自然界有40种蚊子可以传播疟疾，通过对其中一种(Anophelesgambiae，冈比亚疟蚊)进行研究，研究人员们创造了100只雄性不育蚊子。
By studying one (Anopheles gambiae) of the 40 mosquito species that spread the disease in nature, researchers created 100 male mosquitoes without sperm.
自然界有40种蚊子可以传播疟疾，通过对其中一种(Anophelesgambiae，冈比亚疟蚊)进行研究，研究人员们创造了100只雄性不育蚊子。
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