While the various sunfish hybrids CAN reproduce, they probably all have lower effective fertility than the parent species (lower reproduction and/or retention). Lots of near-species crosses are completely sterile, mules being the classic example.

Alternatively, it's like my 13 year old says - if hybrids were all that great, we'd eat all our meals with sporks, fnives, and knifoons, not just school lunches.


"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
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