From Terra Nova Wiki
|Original air date||
October 3, 2011
Simone Kessell as Alicia Washington
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A legion of previously unseen pterosaurs arrive en masse and begin attacking the colony. When it is discovered that Terra Nova was built on their nesting grounds, Jim and Taylor search for a way to remove the migrating creatures. Elisabeth discovers that a former flame, Dr. Malcolm Wallace, is in Terra Nova who recruited Elisabeth to Terra Nova, apparently assuming Jim would still be incarcerated in Golad prison. Meanwhile, Elisabeth and Malcolm work together to synthesize a pheromone that might lure the pterosaurs to a new breeding site.
Beetle grub, Boston, Boylan's Bar, Cancer, Carnotaurus, Fertilizer, Future Shock, Geothermal well, Guitar, Interaction protocol, Jackie Hayes, Jenkins, Kara, Malcolmus Pterosauri, Marker 24-Alpha, Marker 26-Alpha, Medical spray, Moss, North Rim, Oblivion, Outpost 3, Phalaenopsis Aphrodite, Pheromone, Pitcher plant, Platinum, Pterosaur, Rainbow Ash, Research balloon, Research team, Rover, Second pilgrimage, Sixers, Sonics, Steri-bin, Survival training, Terra, Terra Nova Database, Terra Nova Market, Terra Nova Mess, Terra Nova Research lab, Terra Nova Towers, Transport, Tree darter, Wine, World Series, Xiphactinus, Xiphkabob, Yellow pigment plant
- For episode-specific crew, see: Instinct - Credits
- This episode reveals that Elisabeth Shannon was recruited at the request of Dr. Malcolm Wallace.
- Dr. Wallace names the species of Pterosaur after himself, Malcolmus Pterosauri.
- Simone Kessell mentioned in a Twitter post that she did in fact eat real beetle grubs in this episode. 
- The supply run mentions them being near Marker 24-Alpha but later Lt. Alicia Washington states they were near Marker 26-Alpha.