Cats may be very staunch carnivores and masters of the Atkins diet, but a little salad now and then helps keep their digestive tract in tip-top shape.

Grass-Eating Cat

Okay, the "salad" is just grazing on a little grass. And some humans are quite put off by cats throwing it right back up. I don't have a problem with that -- except when they save it to barf out on the living room carpet.

Image via 500px

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