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14 小时
猫猫祖先的眼睛是什么颜色的?
大多数野生动物的眼睛颜色都很单调,通常是黑色、棕色或黄色,但野生猫科动物的眼睛颜色却极为丰富,这让许多研究者都颇为困惑。回溯眼睛颜色的演化非常困难,毕竟化石无法保存眼睛的颜色,动物标本的眼睛是人工制作的,而大多数书里只会展示每类动物的一种眼睛颜色。如 ...
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GA chief justice to resign
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AZ border task force order
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'Risk assessment’ probe
PGA Tour Courage Award
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