so, we've heard a lot about wolf-coyote hybrids, and how a new species is developing. this is interesting to me because i think it's an overlooked mechanism that describes rapid evolutionary change, as it is driven by habitat change, as it is driven by climate change - in a way that is substantial enough to resolve the gould-dawkins debate. if you don't know what i'm talking about it, don't worry about it. just realize that hybridization is more common than your grade 10 science teacher would have you know.
maybe you heard something about polar bears and grizzly bears, too.
it turns out that the felines in the area also hybridizing. see, there's an underlying theory hidden here that hasn't been written...
http://www.nrri.umn.edu/lynx/information/hybrid.html
one of the things that i like about this re-understanding of the evolution of species is that it suggests that when related species that had been speciated through allopatric means recombine they often react not by competing for similar resources but by co-operating, sharing resources and ultimately combining into new species.
i'm not a naturalist. i'm not tied to "natural behaviour", or see how understanding "how nature works" ought to provide any useful insight into building societies. however, that has interesting ramifications for those that do think in those terms.