アメリカ自然史博物館のインスタグラム(amnh) - 10月5日 09時33分

The sawfish’s formidable snout, called a rostrum, is an amazing sensory organ. With thousands of tiny pores, the rostrum can detect electrical fields emitted by other organisms, allowing this ray to monitor its watery environment. The fish also use it to root out sand-dwelling prey like crustaceans and mollusks, pin down prey, and kill schooling fishes--even for self-defense. The saw can account for about a third of their overall length, which can reach more than 20 feet. #sawfish #oceanlife #rostrum #amnh #insideamnh #fishofinstagram #aquatic

[BIHAKUEN]UVシールド(UVShield)

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