I don't understand the chinchilla's initial contact method with the dog: It was a leap attack of some sort. I appreciate the effort, I just want to know what it was thinking.
My terrier seems deliberately EVOLVED to kill chinchillas, if his preference in toys and play-methods are any indication. This one is absurdly well trained or oblivious to his ancestral calling as Rat Catcher Dog.
Terriers were bred for killing rodents. My Jack Russell hunts rabbits all the time. He's even tried hunting cats, but of course that doesn't work out too well for him.
Is a chinchilla even a real animal? It looks like it was genetically engineered by a thirteen year old Japanese girl to hunt marshmellows or something.