幼鲸长出一层厚脂肪以抵御冰冷的海水。
The baby whale develops a thick layer of blubber to protect it from the cold sea.
我从来没有想过，幼崽会在地上游荡，在父母的保护下成长壮大。
I never thought that the young would be hanging out on the ground, growing and gaining strength as its parents guarded it from above.
让不同的幼袋鼠处于不同的发展阶段，有利于母袋鼠同时照顾它们。
To put different young kangaroos at various stages of development is advantageous for the female kangaroo to handle them at the same time.
西红柿、辣椒、茄子、秋葵以及这一科的其他植物在温度超过32摄氏度时，花蕾和幼果会掉落。
Tomatoes, peppers, eggplants, okra, and other plants in this family can drop flower buds and young fruits when the temperature exceeds 32 degrees Celsius.
EPIC 花费资金购买了价值250万美元的幼野牛，这些幼野牛将按照草饲协议饲养，购买价格有保障。
EPIC fronted the money for the purchase of $2.5 million worth of young bison that will be raised according to its grass-fed protocols, with a guaranteed purchase price.
只有当母老虎在保护自己的幼崽时，或者当公虎在保护母老虎不受其他雄性动物的注意时，它们才会殊死搏斗。
Tigers fight to death only when a tigress is defending her young, or when a tiger is guarding a tigress from the attentions of other males.
玩耍可以让一只小动物探索环境并在相对安全的环境中练习技能，因为周围的成年动物通常不期望幼崽应对威胁或捕食者。
Play allows a young animal to explore its environment and practice skill in comparative safety since the surrounding adults generally do not expect the young to deal with threats or predators.
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。
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.
这只母狮还在给它的幼崽喂奶。
动物们排斥一窝中最弱小的幼仔。
大象曼弗雷德伸出它的鼻子，轻轻地抱起了幼仔。
Manfred the elephant reached out with his trunk and gently scooped up the baby.
宰杀海豹幼仔的行为已引起了环保团体的强烈抗议。
The culling of seal cubs has led to an outcry from environmental groups.
幼崽们吃完后，饲养员问：“你们愿意帮忙喂成年松鼠吗？”
After the babies finished eating, the keeper asked, "Would you like to help feed the adult squirrels, too?"
这些是幼崽。
渐渐地，幼蝉长大成年了。
然而，当它们潜水觅食时，它们的幼崽可能无法跟上父母。
While they are diving for food, however, their young may be unable to follow their parents.
最初几天，凯南总是对幼崽不在身边感到有些失望。
For the first few days, Kynan was always a bit disappointed that the cubs weren't there.
在大自然的动物世界中，如果幼崽的父母死亡或失去了抚养的能力，幼崽们可能不会那么幸运或轻易地找到养父母。
In the world of animals in nature, the young may not be so lucky or easy to find a foster parent if their parents die or lose the ability to raise them.
小时候，我的父母就告诉我要尊老爱幼。
From a very young age, my parents told me to respect the old and care for the young.
雷米会和大多数的幼崽一样不幸吗？
有时大象会攻击人类，特别是当它在保护幼崽或受伤时。
Sometimes an elephant will attack human beings, particularly if it is defending its young or it has been wounded.
它们耐心地在水面下照顾幼鲸，等待哺乳期的母鲸回来。
They patiently take care of the young whales just under the surface of the water, waiting for the feeding mothers to return.
负责繁育计划的林姆尼港保护区迎来了一只稀有的黑犀牛幼崽。
Port Lympne Reserve, which runs a breeding programme, has welcomed the arrival of a rare black rhino calf.
他还清楚地记得，他的第一个家庭作业是画一幅叫《老与幼》的画。
He still remembered clearly that his first homework was to paint a picture called Old and Young.
另一个原因是熊妈妈可能不够胖，无法为它们的幼崽产奶，所以一些熊可能会停止生育。
The other reason is that mother bears may not be fat enough to produce milk for their babies, so some bears could stop having babies.
在全球范围内，动物园里三分之一的苏门答腊老虎幼崽活不到成年，所以我决定在家里全天候照顾它们。
Globally, a third of Sumatran cubs in zoos don't make it to adulthood, so I decided to give them round-the-clock care at home.
她载着其中一批幼崽，而其它的在等她回来。
While she is taking one load of hatchlings, the others wait for her to come back.
我们给那些幼枝浇水，它们之中有一棵就是接骨木树。
它的母亲在附近被杀了，洞里浸满了水，其余的幼崽都死了。
Its mother had been killed nearby an' th' hole was swum out an' th' rest o' th' litter was dead.
总的来说，这些因素可能选择不爬树作为懒熊幼崽的防御策略。
Collectively these factors probably selected against tree-climbing as a defensive strategy for sloth bear cubs.
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