shaking cats, most from shelters, shot by a photographer who let animals get under her skin. >> sabertooth tiger, three-headed dog here. >> reporter: carly davidson was inspired by her beloved slobbering mastiff, norbert, since departed. >> i would be on a stepladder cleaning his drool off the walls. >> reporter: she took norbertha's photo shaking. >> face everywhere, tongue over here, drool over there. >> reporter: and when humans drooled over her photos, she had found her niche. so how do you get cats to shake? well, they did not squirt them. >> we captured the shake when we would clean their ears. >> reporter: adding a drop or two of special ear cleaner. >> or just itch their ears. you know when you rub their cat's ears. >> reporter: for many furry mammals, shaking is an incredible drying mechanism. ♪ rats shake about 18 times a second versus 4 times a second for dogs.