As they attach to their host, they take over the personalities of the people they possess and control them (hacking their DNA). Within hours, the Xenocyte will completely cover the host's bodies transforming him into a DNAlien. Xenocyte eggs are created from an egg-laying machine. The eggs hatch underwater in large artificial green rivers. After hatching, the Xenocytes are stored in boxes filled with DNAlien slime. The Xenocyte eggs were going to ship out all throughout the country, but they failed.