Recently planetary scientists have suggested that the external preconditions for the development of Earth's biosphere probably included four paramount contingencies.

最近，行星科学家提出，地球生物圈发展的外部先决条件可能包括四个最重要的偶发事件。

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Other scientists have suggested fingerprints could improve our sense of touch.

其他科学家还认为指纹能提高我们的触觉。

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Other scientists have suggested that charges dissipating through the ground can create balls of glowing ionised gas above it.

其他科学家提出，电荷导入地面下，会在地面上产生发光的离子气团。

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Scientists have suggested that food tastes better when you have to work for it.

NEWYORKER: Thirstbar��vin

This is not the first time scientists have suggested that chocolate may be healthy for us.

BBC: Chocolate 'may help keep people slim'

Some scientists have suggested sinking dead whales off the Scottish coast in the hope of observing the creatures.

BBC: Everybody's shuffling: Rise of zombies in modern life