Before they can go back, however, Dubois tranquilizes and captures them, before being discovered by the zoo staff, who believe she is responsible for returning the missing animals.
Dubois tranquilizes. This was before being discovered by the zoo staff. This was however. Dubois captures them. This is however. This is before. Dubois was being discovered by the zoo staff. This was however. They can go back. She is responsible for returning the missing animals. This is what the zoo staff believe.