The meanings tied to red have biological roots, the scientists believe.

科学家相信，与红色相关的意义有其生物学基础。

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The scientists believe that rising sea surface temperatures are to blame.

科学家们认为，不断上升的海面温度是罪魁祸首。

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The scientists believe some modern humans migrated out of Africa 67, 500 years ago.

科学家们认为，一些现代人于67500年前离开了非洲。

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The scientists believe that six of the species may represent a completely new kind of coral.

VOA: special.2010.08.10

The scientists believe the dinosaurs are close relatives of the plant-eating triceratops.

VOA: special.2010.10.05

Scientists believe large groups of wolves became stuck when they came to feed on animals already trapped in the asphalt.

VOA: special.2010.04.07

The scientists believe the only way to tackle the problem is to encourage people to quit.

BBC: China's smoking timebomb

The scientists believe these latest findings show that the same process works in humans.

BBC: Myostatin controls the growth of muscles

The scientists believe that a chemical called dopamine could be playing a significant part.

BBC: Massive rise in Asian eye damage