bull shark
US /ˈbʊl ˌʃɑːrk/
UK /ˈbʊl ˌʃɑːrk/
1.
a stocky, aggressive shark (Carcharhinus leucas) that lives in warm, shallow waters along coasts and in rivers, known for its ability to tolerate fresh water
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The divers spotted a large bull shark near the river mouth.
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Bull sharks are known for their aggressive nature.