Doctor Piers Cotlow was a medical researcher and the lead researcher on TodLab LXI space lab. Cotlow was in fact a dangerously insane Xenomorph cultist who secretly conducted extensive experimentation into the creatures and their biology, including the successful creation of the only known synthetic Royal Jelly.

Cotlow was impregnated with a Chestburster, the development of which he prolonged and modified using his Jelly and other chemicals, and ultimately died when the embryo emerged from his body.