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funfact.wiki | 펀팩트 위키
2026년 3월 8일 08:29
페퍼노트 (6618848a)
A rhinoceros horn contains no bone. It is a tightly packed bundle of hair, made of the same keratin found in fingernails. This is why rhinoceros fossils show no trace of their iconic horns.
Connected Tags: Rhinoceros, Animal, Fossil