Freshwater Fish ID {EASY,MEDIUM,HARD} Game Daily

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3. Fundulus julisia
 
Answers:

Gambusia Holbrooki ( Friller2009 Friller2009 )
Barramundi ( Friller2009 Friller2009 )
Fundulus Julisia ( Hybridfish7 Hybridfish7 )
 
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For #3, the females were once used to test human pregnancy’s, and they have a very interesting relationship with a non-fish aquatic species.

I know this one! It’s the japanese bitterling!
 
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