Simon Griffith of Macquarie University in Sydney, Australia, and his colleagues monitored the birds as they either chose their mates or were placed in a mating pair.

澳洲悉尼的Macquarie大学的Simon Griffith和他同事通过观察鸟类选择伴侣或者使它们结成一对得出上述结论。

youdao

One pair of jaguars even shows some very rarely seen mating behavior, so the smell seems to turn these animals on.

一对美洲虎在闻到这种气味后，甚至表现出罕见的求偶行为，可见如此气息彻底激活了这些动物。

youdao

The spider also USES its third pair of legs in the mating display, raising them to show a brush of black hairs and white tips.

这蜘蛛还会在求偶大会中使用第三对后肢，像秀黑发梳、白色梳齿一样升高。

youdao

The mating pair were both speared in an attack on the water near Throop Mill in Bournemouth.

BBC: Dorset swans are speared in "cowardly" crossbow attack

Game is absurdly plentiful here: We saw the Big Five on our first evening, including a pair of lions who began mating loudly in front of us.

FORBES: Magazine Article

And, if you're a woman who's the less attractive one in a friendship pair, you're also more likely to view your more attractive friend as a mating rival.

CNN: Beholding beauty: How it's been studied