In the future, for example, it might be possible to reproduce endangered animals from a single male.

例如，在未来，有可能会用性繁殖出濒危。

" Musky" means having the scent of a male animal.

“麝香”是指具有性的气味。

The old dominant male backs down.

老的占主导地位的性缩了。

Do you think female animals are usually more mild than male animals?

你认为雌性通常比性更温和吗?

Why does the Sun have to rise and then fall? Why can't male animals have babies?

为什么太阳必须升起然后落下？为什么性不能生育？

They were like competitions seen among males of some mammal species for female mates, the researchers said.

研究人员表示，这就像某些哺乳性之间为了争夺雌性配偶而竞争样。

About a third of the females and half the males die from fights with other animals.

大约三分之的雌性和半的性死于与其他的争斗。

The war is, perhaps, severest between the males of polygamous animals, and these seem oftenest provided with special weapons.

战争也许在夫多妻制的性之间最为激烈， 而且这些似乎最常配备特殊武器。

Sperm are really cheap to produce, so males make a lot of them, and animal males typically don't do most of the childcare.

精子很容易形成，所性能“产出”很多的精子，性般不会承担很多照顾孩子的责任。

For example, we see that in male hoofed animals such as moose and most other deer grow enormous antlers shortly before mating season.

例如，我们看到在交配季节前不久，驼鹿和大多数其他鹿等性有蹄会长出巨大的鹿角。

And it is also acting in the brain to motivate later behaviors, like play fighting, that are particularly beneficial to many male mammals.

而且它还能在大脑中发挥作用， 激发诸如打闹之类的后续行为，这对许多性哺乳特别有益。

By definition, when biologists talk about this, animals that are males have a little sex cell, which carries genes and nothing else – sperm cells.

根据定义，当生学家谈论这点时，性有个小性细胞，它携带基因， 而不携带其他东西——精子细胞。

There will be no such a situation that a creature is male by the standard of human being, but female by the standard of animal.

个生根据人类的标准是性而根据的标准是雌性，这种情况不可能存在。

Now, producing such massive sperm takes a lot of energy -- up to a third of a male ostracod’s body is dedicated to making and distributing these cells.

现在，产生如此巨大的精子需要大量能量——性介形类身体的三分之专门用于制造和分配这些细胞。

" We need pictures of the male gonopods, and we need them online, and we need them fast! " So that scientists can help millipedes keep the soil healthful, for them and for us.

“我们需要性生殖足类的照片， 我们需要它们在线，我们需要它们很快！ ” 这样科学家们就可帮助千足虫保持土壤健康， 为他们和我们。

On the other hand, I willingly admit that a great number of male animals, as all our most gorgeous birds, some fishes, reptiles, and mammals, and a host of magnificently coloured butterflies, have been rendered beautiful for beauty's sake.

另方面， 我愿意承认， 许多性， 如我们所有最美丽的鸟类、 些鱼类、爬行和哺乳， 及许多色彩绚丽的蝴蝶， 都为了美丽而变得美丽。