弯曲杆菌感染通常较为温和，但对十分年幼的儿童、老年人以及免疫抑制人群可能具有致命性。
Campylobacter infections are generally mild, but can be fatal among very young children, elderly and immunosuppressed individuals.
相比之下，当幼龙虾在没有牡蛎片的光滑鱼缸中饲养时，大多数都发育出了两个刀爪。
In contrast, when juvenile lobsters were reared in a smooth tank without the oyster chips, the majority developed two cutter claws.
十分钟以后，为了穿过森林，我们将车开上了一条起伏不平的泥泞小道，却发现一只刚从泥坑里打过滚的犀牛跑到了路中间，身后还跟着一只同样满身泥的幼犀，体型差不多有母犀的三分之二左右。
Ten minutes later we were driving through forest along a raised dirt track when a rhino fresh from a wallow climbed onto the road, followed by an equally muddy juvenile two-thirds her size.
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.
幼猩猩很像人类的儿童，在很长一段时间内仍然依赖它们的妈妈，有时大部分时间被妈妈携带着直到5岁。
Much like human children, baby orangutans remain dependent on their moms for a long time, sometimes being carried most of the time until they're 5 years old.
它们以跳跃能力和雌性通过育儿袋来承载幼崽而闻名，并且是澳大利亚的国家象征。
Well-known for their leaping abilities and the female pouch for carrying young (marsupium), kangaroos are a nationally recognized icon of Australia.
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.
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.
我猜一旦幼崽们引起了其母亲的注意，它们就安全了。
I am guessing that once the babies have the mother's attention, they are safe.
一只雌象和它的幼崽漫步在肯尼亚的马赛马拉野生动物保护区。
A female elephant walks with her calf on the Masai Mara Game Reserve in Kenya.
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.
中国人所追求的繁荣就是人人居有其所、幼有所教、病有所医、老有所养的社会。
The Chinese pursuit of prosperity is to enable everyone to have a roof over the head, every child in school, the sick having access to medical care and the elderly taken care of.
这有力地表明，幼鸡的右脑在学习这些行为方面只有很小的作用，或几乎没有发挥作用。
That strongly suggested that the right side of the chick's brain played little or no role in the learning of such behaviours.
因为乞食需要消耗一定的精力，贝尔博士推断幼仔吵闹的程度取决于它们估计自己的吵闹能得到的回报的多少。
Because begging has a cost in terms of energy, Dr Bell speculated that the amount of noise pups make should depend on the degree to which they think they will get a return on their work.
幼狼六个月大时，就会开始和群体中的其他成员一起捕猎更大的动物。
When pups are six months old, they will start hunting larger animals with the rest of the pack.
红外光不是幼星体直接发出的，而是其周围被加热变亮的尘埃发出的。
The infrared light seen from these baby stars does not come directly from the stars, but rather from the warm, glowing dust around them.
尊老爱幼是良好的道德风尚。
To respect the old and to love the young are good moral habits.
幼猫在几天大的时候就学会发出呼噜声了。
Kittens learn how to purr when they are a couple of days old.
母狼为了保护幼崽同猎豹展开了殊死的搏斗。
The she wolf fights against the leopard so as to protect her whelps。
没有海冰，北极熊就无法生存。它们需要利用海冰来抚养幼仔，四处漫游，并以此为平台捕猎它们的主要食物，海豹。
Polar bears cannot survive without sea ice, using it to raise their young, to travel and as a platform for hunting seals - their primary food source.
雌性要抚育它们的幼仔三至四个月，直到小宝宝能够自己游泳。
Females nurse their young for three to four months until the babies can swim on their own.
放养后，熊猫幼崽会被隐藏的摄像机密切监测，以确保它的安全。
Once released, the cub will be closely monitored through hidden cameras to ensure its safety.
两只熊猫都租借到英国，租期为10年。据悉，它们在此期间产下的幼仔将在出生后不久送回中国。
Both pandas are being lent to Britain for 10 years, although it is expected that any offspring they produce during that period will be returned to China shortly after birth.
一位农民把孩子的玩具给三只失去母亲的狐狸幼崽后，震惊地发现它们竟然欢迎这只玩具成为它们的替身妈妈。
A farmer who gave three orphaned fox cubs a children's toy was shocked when the youngsters welcomed the cuddly animal as their surrogate mother.
保姆蚂蚁照顾蚁卵、幼蚁和蚁蛹，根据温度的变化每天不停的将他们转移至合适的地方。
Nursemaid ants look after eggs, larvae and pupae, moving them from place to place each day depending on the temperature.
混杂在企鹅群里的还有近千头南极软毛海豹，大多是幼崽，它们或者呼呼大睡、或者拧在一起嬉戏、或者在小圈子里相互追逐。
Mixed with the penguin multitudes were many hundreds of Antarctic fur seals, mostly pups, sleeping or jousting or playing tag in small gangs.
这个夏天，在印度卡纳塔克邦南部树木丛生的阿内格尔，当两个农民在田间劳作时，一对母象和一头幼象从林中出现了。
TWO farmers in Anekal, a forested bit of the south Indian state of Karnataka, were in their fields this summer when a pair of cow elephants and a calf emerged from the trees.
科学家在一块6700万年的化石中发现了一条蛇盘绕在恐龙蛋和一只幼仔周围。
Scientists have found a 67 million-year-old fossil of a snake coiled around dinosaur eggs and a hatchling.
科学家在一块6700万年的化石中发现了一条蛇盘绕在恐龙蛋和一只幼仔周围。
Scientists have found a 67 million-year-old fossil of a snake coiled around dinosaur eggs and a hatchling.
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