Good evening, Ladies and Gentlemen, as Hitchcock would say on his show. There are spoilers below.
Besides the flying reptiles problem, we found that Dr. Shannon was hand picked by her former boyfriend to join Terra Nova. He knew very well that her husband was in jail.
While there is a little hint of jeolousy with the dad over mom's ex-boyfriend, the teen siblings are developing their own relationships.
The CG was ok, except for the close ups. At the beginning of the show, they had survival training and was taught "fire is the only thing these creatures understand." They should have lit some torches around camp.
The solution was a little hurried. There are many types of pheromones not just sex pheromones. They found a way toextract and synthesizeboth male and females sex pheromones and lure them away. Also, they would not fly back. It's kind of like luring salmon up the wrong river hoping that they would not return to their original breeding spot. I guess the flying reptiles die after sex also.