Homing pigeons are pigeons that are specially trained to fly home from somewhere else.

信鸽是经过特殊训练后能从其他地方飞回家的鸽子。

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A research center is trying to improve its flying robots with the help of homing pigeons.

研究中心正试图在信鸽的帮助下改进飞行机器人。

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In tests, researchers found that homing pigeons were more efficient than flying robots at returning to their home.

在测试中，研究人员发现，信鸽在返回家园方面比飞行机器人更加高效。

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Breeders of homing pigeons have been prevented from letting their birds fly freely.

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Previous research by German scientists in 1999 suggested that short wave radiation had an "undefined negative" impact on homing pigeons.

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Homing pigeons can travel from up to 400 miles away in a single day - using magnetic fields as well as sight for navigation.

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