porpoise
US /ˈpɔːr.pəs/
UK /ˈpɔːr.pəs/
1.
ネズミイルカ
a small toothed whale with a rounded head and a triangular dorsal fin, typically smaller than dolphins and with a more robust body.
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We spotted a pod of porpoises swimming near the coast.
海岸近くで泳いでいるネズミイルカの群れを見つけました。
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The porpoise is known for its shy nature compared to dolphins.
ネズミイルカはイルカに比べて臆病な性質で知られています。