What are even the chances of another world providing humanoid life? I know the universe is vast and endless but it seems like we are most likely to see aliens like the Horta or even 8472 than aliens with primate like physiologies like Klingons, Bajorans, Vulcans and Cardassians. They are all warm blooded, have body hair and lactate. Too much of a coincidence. They explain the genetic similarities in The Chase but it's always been unrealistic.