Episode Description from the Publisher
鸽子为什么可以在百公里以外的地方返回原点呢？最新研究揭示，关键在于其肝脏中的巨噬细胞。这些细胞在分解红细胞过程中富集铁元素，从而具备超顺磁性，使它们能够感知地球磁场，充当天然的地磁指南针。
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