To achieve giant stature, a tree needs three things: the right place to establish its seedling, good growing conditions and lots of time with low adult mortality.

要想长得高大，一棵树需要具备三个条件：合适的育苗地点、良好的生长条件和大量低成虫死亡率的时间。

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Under these conditions, the lobsters developed asymmetric claws, half with crusher claws on the left, and half with crusher claws on the right.

在这种条件下，龙虾发育出了不对称的爪子，左右一半各是破碎的爪子。

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Once every three or four years, when conditions are right, the lake is covered with the pink birds as they stop flight to breed.

每隔三四年，条件适宜时，湖面上就会布满火烈鸟，它们停止飞行开始繁殖。

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Naish won't go so far as to say kitesurfing is superior to windsurfing--"on the right day, with the right conditions, windsurfing is still the best sport on earth, " he says--but he's cleaning up on the craze.

FORBES: Wing and a Prayer

With the right conditions you can turn water into ice or steam, but did you know that a blender can help you turn it into powder too?

FORBES: What Is Dry Water?

Stand-off Jones converted superbly with his right foot in the treacherous conditions and added a penalty to the 47th-minute try six minutes later with an equally well-struck penalty to level the scores at 13-13.

BBC: Scarlets 16-16 Ulster