pups

These natural pain killers may act somewhat like an opiate drug, drawing the mother again and again to contact with her pups.

这种天然止痛剂可能产生类似鸦片类药物的作用，促使母鼠一再与幼鼠接触。

Golden retriever pups, barely seven days old. Almost helpless and yet, capable of sophisticated behaviors that they share with wolf pups.

出生只有7天的小金毛猎犬，看起来很无助，却具备幼狼那样复杂的行为。

A pack is usually made up of a male parent, a female parent and their pups from the last few years.

一群狼通常由父狼、母狼和它们最近几年产下的幼崽组成。

The mammal is distinguished by an unusual breeding cycle that occurs every 18 months and has pups suckle for a year and a half.

这种哺乳动物的显著特点是不同寻常的繁殖周期，每18个月一次，并且要给幼儿海狮哺乳一年半。

How much do wolf pups weigh?

狼崽的重量是多少？

When the pups are very small, other pack members bring food to the mother so she does not have to leave the den.

如果狼宝宝太小，狼群的其他成员会给狼妈妈带来食物，这样她就不用离开巢穴。

Dr Bell confirmed that pups made more noise with generous carers, and less with carers that were stingy or likely to be so.

他发现幼崽会跟大方的看护者吵闹得厉害，而很少去找小气的看护者或者有可能小气的看护者。

A mother red fox and one of her pups touch noses early in the morning at Bombay Hook National Wildlife Refuge in Delaware.

在特拉华州的庞贝·虎克国家野生动物保护区，一只红狐母亲在清晨和她的一只幼崽互相触碰对方的鼻子。

This showed that packs of more than five adults should be able to feed all the pups and still spare a babysitter.

这显示多于五只成年狗的狗群应该能够喂养所有的小狗，并仍然能留一只狗做看护狗。

For independently wealthy , childless couples , pre-pups can be a positive solution in a difficult separation .

对各自都很富有而且没有孩子的夫妇而言，婚前协议可能是艰难分居情况下的积极解决方案。

Pups can swim within hours of their birth but stay with their mothers for up to two years before going off on their own.

小海象出生几个小时就会游泳，不过，它们要和妈妈一起生活两年，然后才会独自谋生。

One new set of brain cells formed in the olfactory bulb, and were specifically tuned to the smells of his pups.

在嗅球中形成了一套新的脑细胞，特别适应于幼鼠的气味。

As the sea lion pups splash happily in the water, they're revealing their location to the finely tuned sonar receptors of the whales.

当这些海狮幼崽在水里欢快的玩弄着水花时，他们的位置已经暴露给用声纳准确定位猎物方位的虎鲸了。

Four new otter pups made their new debut at the Philadelphia zoo, and there was a full-fledged family affair too.

在费城的动物园诞生的四只小水獭首次登台露面了，并且还有一个全家都参与了的事情。

He painted a sign advertising the pups and set about nailing it to a post on the edge of his yard.

他画了个布告牌做广告，准备把牌子订在院子里墙边的柱子上。

Humans, the story goes, realized this was rather useful, and let the least aggressive pups hang around.

传说，人类意识到这种动物很有用，于是允许一些最不具攻击性的小狗在人类居住地周围徘徊。

Statistically, one out of four pups from such a cross will be red.

统计学上，四分之一的犬宝宝经过如此交叉就会是红色的。

It must be big enough to shelter the mother and pups from weather and protect the pups from other animals that may want to hurt them.

兽穴必须足以容下狼妈妈和幼崽，供它们遮风挡雨，同时保护小崽们不受其他动物的伤害。

For instance, I discovered that when ladybugs are born, they come out of the pups and their shells are orange, soft, and damp.

举例来说，我发现当瓢虫出生时，它们从蛹里面出来时壳是橙色的，软的，湿的。

The duo also used the wolf pups' dog companions as demonstrators, giving the dogs verbal commands to focus on the other side of the wall.

两位研究者同时还用狼崽的狗伙伴作示范，命令这些狗注视着墙后面。