Board Thread:Lore Discussion/@comment-25291590-20130317093523/@comment-6881629-20130317113725

Lol at least a Sload wasn't involved. Found this on the wiki page for Men -

Drastically different culturally and physiologically from mer and beastfolk, humans are genetically capable of interbreeding with the former, while rumors of interbreeding with the latter exist, but are unproven.

Most Men and Mer would find even the idea repulsive they see the Beastfolk as being only slightly above animals. If any mixed child was born it would be chased out of the village with torches and pitchfork's at the least.