Border Collie.

Susan Cohen Cute Pet Name: Oly (aka Lolly, Miss Pants, or Stop that!) Location: Stone Mountain, Ga. Age: 6 years Dog Breed: Lab/border collie mix Favorite Toy: She's never been a toy girl, but has one tired old bone (same one since the day her owners adopted her!) she chews for about three minutes, once a day. Favorite Treat: "As far as I can tell, licking the leftover wasabi and soy sauce mixture off my fingers on sushi nights is her favorite treat in the universe," her owner says. Likes: Running as fast as she can in the backyard, walks, car rides and Dog TV -- staring out the front or back doors for hours, maniacally chasing small mammals. Dislikes: The vacuum, thunder, aggressive ...

WoofBC, Flickr Cute Pet Name: Gromit Location: Massachusetts Age: 3 years Dog Breed: Border collie Favorite Toy: Tennis ball. Favorite Treat: String cheese. Likes: Retrieving, swimming, agility, meeting new dogs and people. Dislikes: Baths. Fun Fact: Gromit is a tricolored border collie with freckles. He has green eyes with a blue chip in his left eye. Weird Quirk: Gromit is obsessed with tennis balls and can find them almost anywhere. Congratulations to our submitter, WoofBC. If you'd like to submit your pet, upload your favorite pet photos to our Flickr pool! More Cute Pets ...

Paige the border collie makes us long for those summer days when we swam all day, baked in the sun and smelled of suntan lotion. You know those days: when you can still feel a slight burning sensation from the salt water when you close your eyes. Unless, of course, you wear goggles like Paige. She's one smart cookie and she blows bubbles! More Paige the Border Collie ...

Mark Olenki / AFP / Getty Images Sit. Stay. Biscuit. Ball. How many words does your dog know? Chaser, a border collie from Spartanburg, S.C., knows a whopping 1,022 nouns -- the biggest canine vocabulary ever reported. Intensive Training Chaser's linguistic feat is no accident. It's the result of thousands of hours of hard work by her owner, John W. Pilley, a retired psychologist. As the New York Times reports, after reading about Rico, a German border collie who'd been taught to recognize 200 toys by name, Pilley began a similar effort. In 2004, he adopted Chaser as a puppy and starting training her four to five hours per day. Within three years, she could identify by name 800 stuffed ...

Which dog breeds are the most intelligent? And just what makes them so smart? We took the list of the top ten brainiest breeds and asked dog guru Billy Rafferty, author of "Happy Dog: Caring for Your Dog's Body, Mind and Spirit" to give his perspective. "While most smart dogs have certain traits in common -- loyalty, vigilance, perceptiveness, a caring nature -- "there are many different kinds of intelligence," says Rafferty. "Canine intelligence is more nuanced than people think." In the photo gallery below, Rafferty explains the pros and cons of owning these clever (but sometimes high maintenance) canines. And to learn more about how the original list was created, check out "The ...