实际上，当达艾韬博士和亨德·瑞克斯博士在检验他们的设想时观察到螃蟹一旦逮到左撇子的蜗牛会随即放弃。
Indeed, when Dr Dietl and Dr Hendricks tested their hypothesis they observed crabs picking up left-handed snails and then abandoning them.
刚刚在《生物书简》上公布了研究结果的达艾韬博士和亨德·瑞克斯博士是通过分析海里蜗牛化石来探索这个问题的。
Dr Dietl and Dr Hendricks, who have just published their results in Biology Letters, looked at the question by examining fossil sea snails.
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