Perhaps RumbleFish could change names to that or perhaps ZambiShark?
Quoting from [http://en.wikipedia.org/wiki/Bull_shark]
"The bull shark, Carcharhinus leucas, also known as Zambezi shark or unofficially known as Zambi in Africa and Nicaragua shark in Nicaragua, is a shark common worldwide in warm, shallow waters along coasts and in rivers. The bull shark is well known for its unpredictable, often aggressive behavior."
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