在繁殖季节，雌性改变身上的颜色。
我有提到过现在是繁殖季节么？
青海湖裸鲤在繁殖季节，丰满度下降。
The condition factor of G. przewalskii decreased in reproduction seasons.
恶魔的繁殖季节！
在繁殖季节，南乔治亚成为地球上海洋哺乳动物最密集的群体栖息地。
During the breeding season South Georgia hosts the densest mass of Marine mammals on Earth.
肥满度、蛋白质、脂肪和糖原的周年变化与繁殖季节有关。
The yearlong changes of the meat condition index, proteins, lipids, and glycogen correlated with the reproductive season.
他们是光明和美好的颜色，因为它们是在高度的繁殖季节。
They were bright and rosy-colored because they were in the height of the spawning season.
世界上大部分鸟类的繁殖季节即将到来，紧随其后的就是幼鸟出生的季节。
Breeding season is underway for most of the world's birds, with hatchling season close behind.
大约240个雀巢是在繁殖季节修筑的，但只获得了其中119个完整的资料。
Some 240 nests were built during the breeding season but complete data were available from only 119 of these.
当繁殖季节来临时，他拒绝参加产卵活动，说：“我游遍了整个世界。”
And when the breeding season came, he refused to join the spawning, saying, "I've swum around the entire world."
大量的生产实践证明繁殖季节绵羊胚胎移植成功率明显高于非繁殖季节。
Large Numbers of practical productions have proved that the success rate of oestrus season for sheep embryo transfer was obviously higher than the non-oestrus season.
要么意大利麻雀不喜欢西班牙麻雀的外貌，要么或许它们已经进化形成了不同的繁殖季节。
Either the [Italian sparrows] just don't like the look of the [Spanish sparrows] or perhaps they have evolved a different breeding season.
母象海豹，在它们的繁殖季节10月里可多达6000头，让圣安德鲁斯海湾更加喧闹。
Elephant seal cows-as many as 6, 000 in October, at the height of their calving season-add to the crush at St. Andrews Bay.
如果一个繁殖季节中白鼬有充足的沟鼠和鼷鼠为主食，它们就会生长良好，且数量会达到猖獗的程度。
With their staple diet of rats and mice in plentiful supply in a season, stoats fed well and their numbers reached plague levels.
本文介绍了褪黑激素受体基因的多态性分析及其与繁殖季节性之间的关系，并对牦牛该基因的研究做一展望。
This paper introduced the polymorphism of melatonin receptor gene and discussed the relationship between melatonin receptor gene and reproductive seasonality.
科学家们把培养皿自己的腹部进行擦拭。对于关于蚊子喜好的可能性解释，蚊子的繁殖季节提供了无数的猜想。
Scientists rubbed petri dishes against their stomachs. The mosquito season gives rise to countless speculations about possible solutions to the age-old mystery of mosquito preferences.
初次繁育的亲隼经常会晚点求偶，如果对比有繁殖经验的亲隼来说。但是接下来的繁殖季节它们就会提前一些。
First time breeders usually start their courtship slightly later than experienced pairs but in subsequent seasons they will start earlier and for a longer period.
鸟类学家们研究发现，在整个繁殖季节的过程中，雀蛋一产下就弃巢而去的行为提高了这些遗弃巢穴的山雀的产雏量。
They found that, over the course of the breeding season, deserting the nest once eggs had been laid boosted the number of descendants produced by the bird that fled.
为了了解这种行为为什么会发生在鹈鹕当中，安德孙和他的研究生，包括论文的第一作者马提娜穆勒，搜集了三个繁殖季节的资料。
To understand more about how this behavior arises in the boobies Anderson and his graduate students including first author Martina Muller collected data over three breeding seasons.
作者介绍了褪黑激素受体1b的结构和功能，褪黑激素受体1b基因的克隆及基因结构、发育性表达与作用、定位与多态性，并讨论了该基因与繁殖季节性的关系。
This review introduced the structure and function of melatonin receptor 1b, the cloning and structure, developmental expression, mapping and polymorphism of melatonin receptor 1b gene.
来自英国南极观测站（BAS）的地图学专家PeterFretwell说：“我们无法在卫星影像上看见真实的企鹅，这是因为卫星的分辨率还没有达到能看清企鹅的地步。 但是在繁殖季节时，企鹅们会在一个栖息地呆8个月之久。
Mapping expert Peter Fretwell, from the British Antarctic Survey (BAS), said: 'We can't see actual penguins on the satellite maps because the resolution isn't good enough.
藏绵羊按季节繁殖。
研究了光照对广东灰鹅季节性繁殖活动和内分泌的调控。
Study on photoperiodic regulation of reproductive seasonality of Guangdong greylag geese.
研究了光照对广东灰鹅季节性繁殖活动和内分泌的调控。
Study on photoperiodic regulation of reproductive seasonality of Guangdong greylag geese.
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