But not just any bromeliad pool will do.

但并不是每个凤梨水池都有雄蛙。

And of course, birds and amphibians lay their eggs up there in the bromeliads.

当然，鸟类和两栖动在那里的凤梨里产卵。

A male finds a bromeliad and attracts a female, who lays her eggs directly into the water.

雄蛙发现凤梨后会在此吸引雌蛙，雌蛙会直接将卵产在水。

It likes to hang out in the little ponds that form in cavities within bromeliad plants.

它喜欢待在凤梨小洞注水形成的小水池里。

But the very largest bromeliads were unoccupied by the frogs, which suggests there's a Goldilocks situation.

但特别大的凤梨却并没有被树蛙占领，这说明其存在“金发姑娘原则”（刚刚好就是最适合的）。

If I would be a frog, I would like that bromeliad.

如果我是树蛙，我会喜欢那种凤梨。”

If the bromeliad's water tank is too large, then the frog's head can't form a tight seal around the opening.

如果凤梨水池太大，那树蛙的头部就不能形成紧紧锁住凤梨孔的密封盖。

It's so crazy that there are some really nice, big bromeliads and I never found our frog there.

“有些凤梨又大又好，但我在里面却没找到一只雄蛙，这太不正常了。

Turns out, after a twelve-hour test, it was the bromeliad that scrubbed the most chemicals from the air.

十二个小时的测试结果表明，凤梨最能吸收空气的有毒气体。