产卵的

Males accomplish this feat by embracing the object of their affection in a tight mating "hug" called amplexus.

雄蟾蜍要完成这一壮举，必须紧紧拥抱自己的"心上人"，即"抱合"(指雌的蛙或蟾产卵于水时雄的蛙或蟾抱合排精的求偶行动)。

Anguilla of Europe, that lack pelvic fins and characteristically migrate from fresh water to salt water to spawn.

鳗任一种长的蛇形的无鳞海洋或淡水鱼，尤指产于北美东部的扁平鳗鲡属或欧洲的鳗属，都缺少腹鳍，并且是典型的从淡水中迁居到盐水中产卵

Anguilla of Europe, that lack pelvic fins and istically migrate from fresh water to salt water to spawn.

鳗：任一种长的蛇形的无鳞海洋或淡水鱼，尤指产于北美东部的扁平鳗鲡属或欧洲的鳗属，都缺少腹鳍，并且是典型的从淡水中迁居到盐水中产卵

Most reproducing females were allowed to lay eggs in laboratory enclosures of which each held skinks from the same population, and the remaining females were used to test for the influence of thermal condition and caudal autotomy on the timing of reproduction, reproductive output and egg size.

多数从野外捕获的母体饲养在实验室围栏内直至产卵，不同种群来源的石龙子分别关养；其余母体用于检测怀卵期环境温度和断尾对繁殖输出和卵大小的影响。卵在三个恒温、一个波动温度热环境中孵化，用于检测孵化温度对孵化成功率、孵化期和幼体表型特征的影响。

It is said that millions of sardines migrates from cold sea area for spawn in Capetown to the east for zooplanktons to prey. However, what wait for them are armies of predators, including of porpoies, doradoes, sharks, sea dogs and whales. Some solans and sea-gulls also dive into the sea to attempt to prey sardines, but sometimes they themselves become victims of sharks.

据悉，每年数以百万计的沙丁鱼将从开普敦较冷的产卵水域向东迁徙寻找浮游动物为食，然而等待它们的却是一群猎食大军，其中包括：海豚、剑鱼、鲨鱼、海豹和鲸，在水面之上还有塘鹅和海鸥盘旋着，试图寻找机会潜入水中捕食沙丁鱼，但有时潜入水中的鸟类也会成为鲨鱼的捕食对象。

The traditional methods such as morphology and ecology have provided basic tools for identifying the cephalopod structure, in which the way based on statolith aging has become important.

分析认为，头足类种群结构的研究在世界范围内已经取得了很大的进展，传统的形态学和生态学方法为其鉴定提供了基本的手段，其中利用耳石对其生长和产卵季节等进行推算是当前研究的主要手段之一。

During the 3 breeding cycle, we have research successfully on the laying eggs, fecundation, artificial incubation, artificial fostering nestlings , and the nestling growth in captivity.

终于在大鸨人工饲养条件下产卵、受精、人工孵化、人工育雏及雏鸟的生长发育等方面的研究上取得了成功，同时还对大鸨的骨骼解剖，羽毛微观结构观察及成分分析，生殖系统解剖、消化系统解剖及消化系统组织学疾病防治进行深入的研究。

If a head louse falls off the human host they generally die within two days although in this time female head lice may still lay eggs on surfaces that resemble human hair, like teddy bears and woolen rugs which gives possibilities of the cycle being able to start again through a different host being found.

如果头虱属于小康的人力东道国，他们一般模具的两天内，虽然在这个时候女性头虱仍可能产卵于表面，类似于人类的头发，像泰迪熊和羊毛地毯，让可能性周期能够重新开始通过一个不同的主机被发现。

Chinese alligator eggs and reproductive environmental factors have been investi gated from 1998 to 2005 in the Anhui Research Center for Chinese Alligator Reproduction. The study included clutch size, time of laying eggs, time of hatching, temperature and humidity du ring incubation, number of hatch lings, and vegetation canopy density over the nesting sites.

在1998~2005年对扬子鳄繁殖研究中心内自然环境下鳄卵及其繁殖地环境因子进行调查，包括窝卵数、产卵时间、出壳时间、孵化期内温度、湿度的变化情况、雏鳄孵出后的存活数量以及巢区的植被盖度。

It was extremely demoralising when someone in our Society claimed a spawning of Cardinals and raising them in a community tank.

特别受打击的是在我那个社区的某人申称宝莲灯已成功在混养的水族缸中产卵并在水族缸中成长了。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。