But if you give it toys and put other rats in its cage, they're going to be smarter rats.

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Note: You see no references to rage or rats in a cage here.

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"We've been round and round on this like rats in a cage", said one of the most experienced of Brussels diplomats.

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Similarly, the movements of the rats were tracked in their cage and used to control an avatar projected into the VR world the human subjects experienced via a head-mounted display.

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Surprisingly, the rats returned to that portion of the cage again and again, despite the sensation.

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The researchers hypothesized that if the stimulation to the limbic system were unpleasant, the rats would stay away from that part of the cage.

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