We know the queen of Isla Nublar would prefer to be number 1 on the list of released dinosaurs in Jurassic World Evolution, but she only made it to 15 in the overall ranking. This makes sense given that they're harder to produce and prefer their own company (unless you modify their genes, of course).
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I wonder if the
Spinosaurus is higher ranked? Because, even though it's highly expensive when using limited cash, especially when modifying their genome, the fact they can take forever to hatch, and that they need a lot of space to satisfy their habitat needs, they are actually
very easy to keep in challenge and other normal means.
Spinosaurus' comfort meter by default is not as low as t.rex, meaning their stress doesn't go into the "danger zone" during light storms as the former, and they can also be kept with two individuals together by default, not like how the rex likes to be alone by default. Finally, whereas rexes, like most carnivores, need a meat or goat dispenser, which costs money per dispense, they can feed from a fish feeder which doesn't dispense food and can last much longer.