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Chemical senses; chemoreception; chemoreceptors; infochemicals; semiochemicals; chemical stimuli; chemical communication; chemical cues; chemical perception; vomeronasal organ; vomeronasal epithelium; vomeromodulin; pheromone-binding protein; pheromone biosynthesis-activating neuropeptide; PBAN; Dufour's gland; scent gland; scents; scent marking behavior; territorial behavior; feeding behavior; mating behavior; reproductive behavior; trail following behavior

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It should be realised when mating your birds that the variety exists in two forms - purebreeding, carrying two factors (2-F) for clearwing and the other carrying one factor (1-F).

應(yīng)該實現(xiàn)交配時，你的鳥的種類有兩種形式存在- purebreeding成人免费视频网站，攜帶clearwing和兩個因素（2 - F）的執(zhí)行的其他因素之一（1 - F）之間国产,日本,欧美,校花在线视频。

The reason of fireflies working every day and carrying a lantern every night is to find the other missing half! If you would like to appreciate the mighty work of God, you'd better come at night while they are working from around 7 pm to 9 pm. Apart from watching fireflies at night, you can also take a nice and slow stroll in the Alishan Mountain and visit nearby tourism scenic spots, including Green Tunnel, Swallow Cliff, Bat Cave and Ruitai Old Trail.

螢火蟲之所以每日上班天堂视频网站在线观看，點(diǎn)著燈籠夜晚飛翔，就是為了找到另外一半交配傳宗接代久草观看视频，所以想要欣賞螢火蟲美妙的倩影中文无码视频t，就要抓住螢火蟲上班的時間觀賞，大約夜晚七點(diǎn)～九點(diǎn)是螢火蟲最多出門上班的時刻久久久久久黃色網站免費，九點(diǎn)左右就會下班回家休息色视频在线一区二区三区，瑞里地區(qū)因為近期復(fù)育有成，所以天氣好時18岁免费看的黄色网站，螢火蟲數(shù)量可上看十萬多只黄色视频.com888，整片山壁都可以看到發(fā)亮的螢火蟲飛舞。

I do not understand.- You have coitus with her.

我不是很明白-你跟她交配

The color is a key to mating success—the brighter the better.

顏色是一個關(guān)鍵交配成功光澤越好国产精品老女人精品视频。

Males and females only commingle during mating season, otherwise they live solitary existences.

公獸和母獸只在發(fā)情期交配一级涉黄，平時獨(dú)來獨(dú)往。

Embryonic germ cell lines were isolated and cloned from gonad,gonadal ridge,analogue or the surrounding tissues of 9.5～13.5 days postcoitum mouse fetuses.Primordial germ cells were co-cultured with mouse embryonic fibroblasts obtained from the same conceptus.

自交配后9.5～13.5 d小鼠胎兒生殖嵴/腺或其類似物及周圍組織免看一级a一片日韩A片，采用與其同源胎兒成纖維細(xì)胞共培養(yǎng)的方式分離克隆到具小鼠ES細(xì)胞諸多特征的胚胎生殖細(xì)胞系欧美在线免费观看视频。

People of former times would copulate with each other out of desire for temporal gain or for mutual help or to relieve concupiscence, even when they had no hope of offspring; for they were truly copulating as married persons.

人的前時代，將交配與對方出的愿望人人澡人人爽人人夜夜，顳獲益或互相幫助，或以減輕concupiscence 特黄一级乱淫A片，即使他們是沒有希望的后代色色肉肉视频，因為他們都是真正copulating為已婚者。

During the mating ceremony it is the male who takes the passive role and the female can take up to three different mates contiguously. The final partner she attracts will be the one to rear the young.

交配時免费看一级大黄片，雄鳥處于不利地位欧美三级网站，一只雌鳥的身邊會有三只雄鳥圍著它轉(zhuǎn)，最終被她吸引的那只雄鳥將會承擔(dān)撫養(yǎng)后代的任務(wù)大学生一级A片。