(Heya heya. This chapter is really only exposition set for the world, and its logistics, so it won't be too long. Enjoy, I hope you will.)
In a world long past, there was once a time where humans lived all alone. Aside from those really awesome pets that can do amazing things, or those test animals that escaped that you hear about only in creepy campfire stories (if it's the Bunny Man, not really an animal, but close enough: he can still hang ya by your intestines.), we had no other animals like us. We all existed in our own ways and tunes, but a lot of notes were quite screeching in noise, and of course, we started to annihilate this world. Mother 3 really does display this: the world, once lush and dense with forestation and life, is now a metallized mechanical invention, leading to the Great Extinction: almost no other animals are alive due to the Shockwave Disaster, which also killed nearly every infant, child, or other person with certain mental disabilities, such as encephalitis, or anything relating to it.
In a desperate race to try and fix their mistakes, far too late might I add, scientists rushed to their newest creation: The Centresro Lab. That lab contained equipment to reanimate life and clone cells like nothing else before. It was shut down after zombie and vampire fanatics tried to bring the world down with those two ghouls. Of course, it just brought the dead to life again (quite a pain for morticians and newspapers with obituaries alike). However, this lab was now being used to re-create animals necessary for our benefit: sea creatures, land animals, other mammals, and fowl all alike were created en masse, to the delight of everyone. However, one day after an experiment, a specific lab chamber was not sterilized, 13A7. Remember that, it'll be useful for later. Anyway, so much DNA was left behind that during the next experiment, a shocking discovery was made: no baby animals were found. Instead, strange anthropomorphic animals were made instead, babies indeed but none as expected. The first were the Three Leaders, the ancestors of all anthro animals: a crow, a kangaroo, and a Nubian goat. The two females and one male (the crow is the male. You are hopefully smart enough to know whom the females are.) made for quite an interesting development: they developed a different sense than humans did.
Most anthro animals that existed never actually acted like humans. Despite sharing the DNA that made them, they were very different. For one, multiple relationships/marriages were acceptable, but there was always one thing: you are eternally vowed to the first you married, so as long as you acknowledge that, you're fine. Eternal vows means that no matter how many true loves you have, your first lover is the one your heart will belong to when you die. If you break this bow and consider another lover to love you more, you will become quite a social pariah as soon as it's found out. In human relationships, as we all know, more than one relationship is a big no-no, much less 10. Or 30 or 68 or 728. As well as that, a throw connect easier, are much laxer on what laws should be established and punishments for breaking them, and have many less boundaries than others. Due to how mating works, many anthros started to become known in the continents, and eventually the world. Alas, this what not to last. No matter what, those who do not learn from history are doomed to repeat it, and it's no more different here, sadly. At first, millions of anthro animals become slaves to humans: why not have a mindless cow do it when a bigger, more intelligent and self-aware one can do it better? So it was much like how America was in the 1800's: a big fight against and for slavery. War broke out between the two species, double-crossers and sympathizer son both sides. The anthro species weren't intentionally being harmful, yet were being invasive; humans were around much longer but are attaching without much provocation; and a billion or so were left neutral, on neither side. Humans jade more gear, but anthros were vicious, and just kept reproducing. It takes an anthro only 3 months to bear a child, and you really can have a huge chance of having more than one at a time. They also had their own bodies, and the technology from raised facilities. After a 30 year war, both sides realized it was a tremendous waste of effort, so the the post Civil war came around. Many laws were made to discriminate against anthros in the west, in the east many were made for or against them, and in Japan they were openly welcomed. Tensions have been formed, and over the years laws have been reduced. We take a look at a story, of which race nor religion take a big of a role as species. Quick notes: their anatomy is like ours and theirs, so if they have 5 hearts as an animal, they have 5 for their anthro form. Also, laws against them are basically segregation. Now...listen to my story, will you?