User blog comment:Elephant777/Long live the Queen, but how does she live? (Rexy)/@comment-17754282-20150306185039/@comment-17754282-20150416222836

How cows and sheep would get out is simple - they are held in small enclosures, a carnivore comes along, knocks down the comparatively weaker fence, kills one of the animals and the rest make a brake for it.

Anyway, the whole argument about whether or not the Dinosaurs could have survived without lysine supplements is pointless as the Lysine Contingency is redundant. Lysine is an essential ammino acid. No vertebrate species ever, be they duck, horse, carp, turtle, toad, wolf, human, triceratops or tyrannosaurus has been able to produce lysine themselves, it has to be gained from food. This is how your dog gets lysine, this is how you get lysine, this is how Rexy would have gotten lysine even if Dr Wu hadn't tampered with her genetics.

As for your reviewing of the movies, you are forgetting one very important piece of information - the Masrani Global Corporation took over InGen in 1997, shortly after the events of TLW. Despite this, Dinosaurs will still surviving in the wild on Isla Sorna four years later in 2001, thus rendering your argument that food supplies would have run out to be moot. Anyway, you are also underestimating just how far food can go. One of the Brachiosaurus lying dead could have kept many predators, including Rexy, fed for weeks - especially when you don't take the game as canon because directly after the events of the first film the carnivores that were absolutely on the island were Rexy and a few smaller dinos (Dilophosaurus, Herrerasaurus, maybe Baryonyx, Proceratosaurus, Segisaurus and Metriacanthosaurus) all of whom would likely have given way to Rexy, or even served as additional prey - outside of The Game, Compsognathus are not confirmed to be on Isla Nublar, all the Raptors were certainly dead and there were no Troodon, all of means less competition for Rexy. Hell, she might even have sought out the other carnivores like she did the raptors in order to remove future competition from her territory - look at Lions in Africa; given half the chance they will do their level best to remove competition from the area by attacking and killing Leopards, Cheetahs, Hyenas and Hunting Dogs, especially their young. It is an effective survival mechanism and is what being the apex predator or a food chain is all about.