It is advantageous for a kangaroo female to produce young at a time when plant productivity is sufficient to support her offspring.
袋鼠雌袋鼠在植物繁殖力充足的时候生育后代是有利的。
Is that possible for the offspring to make it on their own so young?
有没有可能是它们的后代这么小就自己谋生呢？
So can the movement of aphids when, having depleted the young leaves on one food plant, their offspring then fly onward to a different host plant, with no one aphid ever returning to where it started.
蚜虫的运动也是如此，当吃完一株食用植物的幼叶，它们的后代会飞到另一株宿主植物上，没有蚜虫会再回到最初的地方。
Couples who place these ads assume that if a young woman attends an Ivy League school, then she will likely pass on her academic ability to her offspring.
刊登这则广告的夫妇认为，能读常春藤盟校的女生，很有可能将其在学术上的优秀能力遗传给后代。
Through the offspring the LORD gives you by this young woman, may your family be like that of Perez, whom Tamar bore to Judah.
愿耶和华从这少年女子赐你后裔，使你的家像他玛，从犹大所生法勒斯的家一般。
By the simple act of neglecting her young, a mother rat could permanently change the expression of genes in her offspring.
因为忽视对孩子的照顾，一个鼠妈妈可能永久的改变它后代基因。
The matriarchal society consists of her female offspring and their young.
母系氏族是由雌性后代和年轻雌性组成的。
The young saw their parents and ancestors as primitive savages, while the elder generation believed their offspring brainwashed by the Cals.
年轻的一代将他们的父母和祖先看作原始的野蛮人，然而年长的一代则相信他们的后代被卡尔人洗了脑。
There are shallow rollers and there are deep rollers, but you can't breed two deep rollers, or their young , their offspring will roll all the way down, hit and die.
鹞鸽又分为肤浅的和深沉的两种，但当两只深沉的鹞鸽结合时，他们的后代往往会撞地而死。
Background the potential mutagenic effects of cancer therapies and the growing number of young male cancer survivors have given rise to concern about the health of their offspring.
肿瘤治疗潜在致突变作用及年轻男性肿瘤幸存者增多，促使人们担心其后代的健康状况。
You can't breed two deep rollers…or their young, their offspring, will roll all the way down…hit and die.
但是当两只深沉鹞鸽结合之后，它们的后代往往会产生无法控制的极端行为，高速俯冲撞地而死。
You can't breed two deep rollers…or their young, their offspring, will roll all the way down…hit and die.
但是当两只深沉鹞鸽结合之后，它们的后代往往会产生无法控制的极端行为，高速俯冲撞地而死。
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