Rachel can't think of any reason the Yeerks would do a slow takeover of a space station. They've obviously got the resources to take over one wholesale, and if this were a Controller operation, he'd have pulled a Dracon on her the second she asked about Yeerks. Plus given that there are apparently other people here who don't belong here...well, okay. Still, she doesn't know...what universe she's in, exactly.

"Andalites are sort of like blue centuars, but with scorpion tails and no mouths. Hork-Bajir are big, seven-foot-tall lizards with blades sticking out everywhere. You'd know them if you saw them." Rachel gives him a faint smile, brushing a lock of hair from her face. "If you've never heard of the Yeerks, then I doubt they're a problem around here."