Kendra Daniels: Isaac, listen up. I've gone over the med-sci reports. These things are BIO-RECOMBINATORS. They take dead tissue, absorb it and molds it into new forms. One iteration seems to have the sole purpose of infecting corpses... The others, well, seem to be making corpses to infect. And that body tissue we keep seeing on the walls is part of it, too. I found a report that says it's a habitat changer.