There are three major landmasses on San Lucas, along with thousands of smaller islands. The South Americans focused on the smaller continent due to it being home to the greatest amount of heavy metals and fuel we could mine for. We did plant some colonies on the other continents, but they were few and far between, and always enjoyed the most beautiful of coastal vistas. And the islands we colonized were similarly small and devoid of anything that would make us think an intelligent species lived there. There were extremely dangerous cats the size of large horses throughout those lands, but they were not intelligent. They were deadly dangerous, and considered humans a fine delicacy worth hunting for. But that first continent and all the islands we colonized completely lacked the intelligent cats we would later meet on the other two major continents.