Here's why:
* Different species: Dogs and tigers belong to different species and are genetically incompatible. This means their chromosomes don't match up, preventing fertilization.
* Reproductive anatomy: The reproductive systems of dogs and tigers are designed for their own species.
* Behavioral differences: Dogs and tigers are also behaviorally incompatible. They have different mating rituals and instincts.
In short, interspecies breeding between a dog and a tiger is biologically impossible.