因为星鸟是最擅长记住储存位置的动物之一，研究人员正仔细观察它们，想找出星鸟拥有超强记忆力的原因。
Because nutcrackers are one of the best at remembering cache locations, researchers are studying them to find out why they have such great memories.
科学家明白星鸟的技能是由于环境形成的。
Scientists know that the nutcracker's abilities evolved because of environmental pressure.
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