They added another little wrinkle so that they could study what happens. And that is they added a gene that makes the insect glow under UV light so that when they released it they could follow exactly how far it went how long it lived and all of the kinds of data for a good scientific study.
Añadieron otro pequeño gen para poder estudiar lo que ocurre: es un gen que hace brillar al insecto bajo una luz ultravioleta, para poder seguirlos, ver hasta dónde llegan una vez liberados, cuánto tiempo viven y todo tipo de información necesaria para un buen estudio científico.