Can Viltrumites Mate With Any Species?

[0:00]Can Viltrumites mate with any species? Well, sort of, because they have to both have the right parts to make it work. Also, most of the time when Viltrumites mated with other species, their offspring would have no abilities. Therefore, they would just ditch them as they meant nothing to them. And at the time, Viltrumite numbers were extremely low, so they were desperately trying to find a species that could produce children with their same gifts. Of course, there have only been two that worked, humans and Thraxans. But human children were pretty much full blooded like Mark, making them perfect candidates to help the Viltrumites regrow their numbers.