according to philippe de vosjoli, horned frog husbandry pioneer, the rumor that most horned frogs in the hobby today are hybrids of ornata and cranwelli are completely false, as the tadpoles of this cross rarely survive, and surviving frogs are always sterile, just like every horned frog cross. thus, crossing hybrid horned frogs with other horned frogs would not work. all horned frog hybrids are sterile. show me a documented case that says otherwise, and i'll go back on my word.