What do you know about the migratory fish of the Potomac River?
{"name":"What do you know about the migratory fish of the Potomac River?", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"Many fish of the Potomac River are \"anadromous\" which means they live much of their life in the ocean but return to fresh water to spawn. BUT one local species is \"catadromous\", living in fresh water but journeying to the ocean to spawn. Which is the Potomac's only catadromous species?, Which of these species is NOT a migratory fish of the Potomac River?, Bull sharks live in the ocean but can tolerate fresh water...in fact, they prefer to give birth in fresh water (baby sharks!) which is why they are sometimes spotted in the tidal Potomac. TRUE or FALSE: Bull sharks have attacked humans in the Potomac River and Chesapeake Bay.","img":"https://cdn.poll-maker.com/49-1643845/bull-shark-2.jpg?sz=1200-00000011461000005300"}
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