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Female fish flaunt fins to attract a mate

Harlequinmania

By Harlequinmania,
in General Reefkeeping_

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Harlequinmania

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For the first time, biologists have described the evolution of the size of a female trait which males use to choose a partner. The research shows that male cichlid fish prefer females with a larger pelvic fin and that this drives females to grow fins out of proportion with their body size.

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1000 Gallon Tank in the Hole 

http://www.sgreefclub.com/forum/topic/120957-1000-gallon-3d-hole-in-the-wall/ 

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