It was easy to watch them, on the other side of the glass, and not think about how deadly they were. They looked tame and civil, in the zoo enclosure. They did normal things, like sleeping and playing with toys. And they looked so happy, there. You’d see their contentment as they went about their little routines, and you’d think…I want one as a pet. But then you’d read the informational boards again, and you’d remember how they destroyed the rainforests and ravaged the savannah and killed the oceans, and you’d remember that humans could never really, truly be tamed.