Is it genetics or select breeding? That's been the question ever since we bought a group of seven Tiger and Gold Tiger eyelash vipers, five years ago. So far, the group breeds true, only to one another. In other words, male Tigers will only breed with female Tigers and not to any other color morph. Tiger babies make up 60% of a Tiger to Tiger breeding. They have been one of our most requested vipers ever since one of our females appeared in "Reptiles" magazine, back in 1999.