mammals

In mammals, females are XX while males are XY so a woman should never be able to provide the necessary Y chromosome genes to produce a son.

在哺乳动物中，雌性的性染色体是XX，而雄性的是XY，所以一个女人是绝不可能产生男性不可缺少的Y染色体基因而生育男孩的。

I thought about this little book, because the author has this in common with me that for him the question of mammals has been resolved.

我思维这本小书，因为作者跟我有共同点见解：对于他，哺乳动物的问题已经被解决。

Any of the long, stiff hairs that project from the snout or brow of most mammals , as the whiskers of a cat .

刚毛大多数哺乳动物的长且刚直的鼻口毛或眉毛，比如猫的胡子。

They were able to estimate the rate at which malaria parasites would have had to diversify in order to spread to other hosts, like mammals.

他们甚至可以推算疟疾寄生虫为了在其他宿主比如哺乳动物上传播的进化比例。

Dr Simpson's analysis indicates that the relationship between dinosaurs and mammals was actually that of a diner to his lunch.

辛普森博士的分析指出恐龙和哺乳动物之间的关系实际上就是用餐者和午餐的关系。

No one has ever before documented the spread of a learned behavior through a population of these marine mammals over a short period of time.

从前没有人记录过这种海洋哺乳动物的学习行为短时间内在种群中扩散的现象。

She says it's very worrisome to see such a large number of marine mammals die.

她说如此大数目的海洋动物死亡现象令人担忧。

Of the one-and-a-half million fungal species on Earth, only a few hundred are capable of infecting mammals.

世界上共计有150多万种不同的真菌，其中只有数百种能对哺乳动物造成感染。

In Antarctica, the only mammals are those that stay for just a short time -- marine mammals like whales and seals.

在南极，独一的哺乳动物是那些仅仅停留很短的时间-像鲸鱼和海豹这样的海洋哺乳动物。

Mammals are more complex still, but even they might be amenable to this sort of extinction modeling.

哺乳类还要复杂，不过，即使是它们都可能适合这种灭绝建模。

More mammals have become extinct in that country over the last 200 years than in any other place in the world.

在过去的200年前，这个国家中灭绝的哺乳动物物种比世界上的其他任何地方都要多。

Moreover, the bones in the front part of a baleen whale's lower jaw, or mandible, aren't fused as they are in other mammals.

另外，须鲸下颚前部的骨骼，也就是所说的下颌骨，并不像其他哺乳动物一样是愈合在一起的。

Some scientists believe that sleep is not important by itself in mammals and birds, and is just a way to impose a quiet and immobile state.

有科学家认为，对哺乳动物与鸟类而言，睡眠本身并不重要，它仅仅是一种强制动物进入静止状态的方式。

If this dolphin is now deemed to be extinct, scientists say it would be one of the few large aquatic mammals to be wiped out in 300 years.

如果这种海豚真的如所说的那样业已灭绝，那它算是近三百年来，为数不多的，销声匿迹的大型水生哺乳动物之一。

all that was required to evolve from early mammals , like lemurs , to humans , was a bit of fine - tuning.

从早期的哺乳动物如狐猴类到人类，要完成的全部进化就是一点点精细的调节。

One of the long stiff tactile bristles or hairs that grow near the mouth and elsewhere on the head of most mammals; a vibrissa.

刚毛，触须，嘴须绝大多数哺乳动物的长在嘴附近或头部其它位置的长而硬的触觉硬髭或毛发

That's quite a bit more than just a few mammals that we're eating, like a cow or a pig or a sheep.

种类远远多于人们食用的那么几种哺乳动物，例如牛，猪，或者羊。

The fact that capsaicin causes pain to mammals seems to be accidental.

因此，辣椒素引发哺乳动物的痛觉感受似乎纯属偶然。

Yet the idea that this shrill little dinosaur can survive indefinitely in a world ruled by and for mammals seems even more far-fetched.

然而，那种认为这只尖叫的小恐龙能够在哺乳动物主宰的世界里无限期存活下去的观点，似乎显得更加不切实际。

For large and slow-to-reproduce mammals like humans, such a growth curve is, to put it mildly, unusual.

毫不夸张地说，对于人类这种大型繁殖慢的哺乳动物来说，这种增长曲线是不同寻常的。