交配

Both aim to avoid pepetatingdeleteious taits by caefully selecting beeding pais andculling any animals that cay genetic anomalies.

两者都通过精心选择交配繁殖的对子，剔除任何携带异常基因的动物的方法，达到避免劣性这一目的。

What is interesting to note is that wings in ants is a sign of unmated males and females, as they are called "winged reproductives" or "swarmers".

什麼是有趣的是，在翅膀的蚂蚁是一个迹象，未交配的雄性和雌性，因为它们被称为&翼繁殖蚁&或

Researchers continue to suss out the subtle effects of pharmaceuticals on the environment, such as antibiotic resistance and changes in feeding and mating behaviors.

研究人员继续suss出微妙的影响，药品对环境的，如耐药性和变化，在喂养和交配行为。

Because this population of birds is so small, conservationists worry about inbreeding, and are considering moving in some chickens from Kansas, where they are more numerous, to boost numbers diversify the gene pool.

由于这里的北美草原松鸡数量很少，自然资源保护者们担心这会导致同系交配，所以正考虑从数量较多的 Kansas 转移一些过来，这样就能使松鸡的基因多样化了。

Be available for stud services, of male domestic animals such as stallions.

指的是雄性家畜例如留种的马用来进行交配。

The sloths eat their food, sleep, and mate hanging from a tree limb upside down!

树獭的吃食、睡眠和交配都悬挂在树干上头朝下！

The sloths eat their food, sleep, and mate hanging from a tree limb upside down!

这些懒家伙每天就是吃东西、睡觉，还有就是倒挂在树枝上交配！

The establishment of polyploids is favored by differential niche preference, low dispersal, a selfing or asexual mating system, high fecundity , and a perennial life history .

对不同生态位的偏好，低分散，一个自交或无性交配系统，繁殖力高和多年的生活史都有利于多倍体的建立。

Clues to this evolutionary process can be found in the activities of play and in the behavior and movements of birds during mating, such as incessant pulling at strips of vegetation or scaping of the soil.

发展进程的线索可以在鸟儿们交配期的玩耍行为举止和移动中找到，例如说不停得去拉拽植物的枝条和土壤的碎块。

This year their excessive mating and resulting offspring are blocking runways and causing radar problems.

这些年，他们过度的交配使得其后代阻碍了交通，引起雷达问题。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。