
参考文献:
Bird, C. D., and N. J. Emery (2009). Rooks Use Stones to Raise the WaterLevel to Reach a Floating Worm. Current Biology 19:1410-1414.
参考文献:
Bird, C. D., and N. J. Emery (2009). Rooks Use Stones to Raise the WaterLevel to Reach a Floating Worm. Current Biology 19:1410-1414.
本文标题:“乌鸦喝水”的故事是真的吗?
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