The Legend of Pyrrhia

Pyrrhia is a place, many of thousands of years into the future. A place like no other. When the continent of Antarctica and both north and south america all merged, leaving the rest of the world spread out, the spread out land was named Eurica and the merged one, Pyrrhia. No humans existed, but wolves, dogs, lions and their prey. A war started between the lions and wolves on Eurica but ended a few hundred years after. That war had an impact across the whole globe. A war breaks out in Pyrrhia, how will that effect the balance?