The males bellow to attract a mate.

雄鳄发出吼声来吸引配偶。

All this just to attract a mate!

这一切只是为了吸引伴侣！

And he is looking for a mate.

它在寻找配偶。

Fireflies use bioluminescent flashes to signal a mate.

萤火虫使用生物荧光发出配偶信号。

Plus, they might get a mate out of it.

而且还有机会顺便找到伴侣。

Finally, this other mate, a mate is a friend.

最后，另一个朋友，mate 是“朋友”的意思。

A mate can be a boy or a girl.

好伙伴可以是男孩，也可以是女孩。

Not every member of a species finds a mate.

并不是每个物种的所有生物都能找到配偶。

A mate is another word for a really good friend.

好伙伴是好朋友的另一种说法。

Smaller and drabber than the performers, female Capercaillie are shopping for a mate.

雌松鸡体型较小，羽毛较为逊色，它们在一旁观战，挑选配偶。

When it comes to choosing a mate, females are very fussy.

每当选择配偶的时候，雌性非常挑剔。

Bright feathers and complex songs are different ways to attract a mate.

明亮的羽毛和动听的歌曲是吸引异性2种截然不同的方式。

The louder they sing, the stronger they sound, which helps attract a mate.

它们歌唱的声音越大，声音越强，更有助于吸引伴侣。

He's what's known as a singer, a male looking for a mate.

他就像是海洋中的歌手，一头正在寻找伴侣的雄性。

This giant, however, isn't looking for food -- he's looking for a mate.

然而这只巨蜥并不是在寻找食物，他在寻找配偶。

They are also designed to attract a mate.

它们也是用来吸引配偶的。

Battles may start over a mate, but they can quickly develop into a death match.

开始可能只是为了争夺配偶而战，但很快这将会演变成一场生死之战。

In some cases, the females left their living groups in search of a mate.

在某些情况下，雌性绒毛蜘蛛猴会离开它们的生活群体去寻找配偶。

She has a very symmetrical face-- she will attract a mate when she is ready.

她的脸型很对称等她准备好了自然就会去约别人。

They may have been used to keep the dinosaur warm or help it attract a mate.

可能用来保暖或者增加吸引配偶的魅力。