You better find a safe place for your dino egg collection, the island just got a new inhabitant who is set on making off with your collection. The Ova Raptor is a carnivore who targets other dinosaurs before they even have a chance to break into the world. 

Unlike any other creature, Oviraptor seems to be able to surreptitiously steal these eggs usually without attracting the attention of an irate mother. In an incredible feat of natural selection, Oviraptor seems to emit a chemical pheromone that affects many creatures as an aphrodisiac. Mated creatures are much more likely to… “create” new fertilized eggs while Oviraptor is around, which allows the Oviraptor to go about its business unperturbed. 

As you can see, not even your toughest guard dinos will be able to stop the Ova raptor when they're under their pheromone spell.