Gerard Jackson and Lewis Johnson were stunned speechless as they stared at Huo Jinghua who sighed when he saw their reaction. "I am just speculating." He told the two.
Gerard Jackson and Lewis Johnson started and then coughed and looked away. They were all fixated on their fellow humans as their enemy who killed Huo Ling that they haven't thought of the aliens' existence at all.
Aside from the Zergs who are also aliens, there were other aliens that have higher intelligence than the Zergs so they could communicate with the human beings. Most were not hostile, so they formed a friendship with the humans, while there are minor groups of aliens who met them with hostility for they felt the human beings stole their territory – which is the stars, and invading them.