So I got to thinking and as odd as it may be I started thinking about Cross breeding between different forms of mammals, more specifically the Mammals who are a lot like each other, such as Wolves and Wild cats, and other such animals. The thought then developed into a larger sense, If nature demands to adapt or die, and the Endangered species in the world were forced to adapt, wouldn't you think that nature would give them a way to reproduce? Granted this is just theory and speculation, and half thought out. But I was wanting your opinions on this, also I know that you can cross-breed those of the same species, that's not what I'm talking about =).