MINNIE GRABS A BAG of popcorn from the top of the refrigerator and puts it in the microwave. She slips a DVD into the player and, snuggling in front of the TV with Craig Cook, the man in her life, tears open the bag. Making sure it isn’t too hot, she places a kernel in Cook’s mouth before snacking herself. And so it goes: one for you, one for me, as they watch a movie together.

A typical couple’s date night? Not quite. Cook is a 41-year-old quadriplegic, and Minnie is a 5-pound, 15-inch-high capuchin monkey.

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