アメリカ自然史博物館のインスタグラム(amnh) - 12月7日 04時04分

It's time for #trilobitetuesday!Judging by the variety of lethal-looking bite marks and healed injuries that frequently adorn their fossilized exoskeletons, it seems safe to say that life as a trilobite presented some daunting challenges. #insideamnh

[BIHAKUEN]UVシールド(UVShield)

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