In the world of wagging tails, the Labrador retriever wins the popularity contest, paws down.
For the 18th straight year, the bubbly dog topped the list of most popular breeds in the country, according to an annual list of 161 dog breeds put out by the American Kennel Club.
"They are probably one of the most versatile breeds," AKC spokeswoman Daisy Okas told ABCNews.com.
Labs, which come in black, chocolate and yellow varieties, are commonly seen working alongside military or emergency personnel, visiting children and the elderly as therapy dogs or simply lounging in front of the fireplace with the family.
"You meet a Lab, they're going to be wagging their tail," Okas said.
It was the breed's personality that drew retired veterinarian Robin Kelly to Labs. She currently owns two lab mixes and volunteers with the San Francisco-based Golden Gate Labrador Retriever Rescue, Inc., which placed about 350 dogs last year.
Kelly, who lives in Lake Tahoe, Calif., said her area has been hard-hit by foreclosures, which often result in owners giving up family dogs for financial reasons. The Labrador retriever's popularity means "we have no trouble getting our dogs placed," she said.
"They blend into families very well."
The AKC's Top 10 list is compiled using the club's registration numbers. The No. 2 dog on the list, the Yorkshire terrier, had 41,914 registrations, a distant second to the Labrador retriever's 100,736 registrations.
Okas -- who owns a beagle, the No. 5 dog -- said the breed with the fewest registrations this year is the American foxhound, a breed championed by President George Washington. It registered with a measly 117 dogs.
Missing out on the Top 10 list is not necessarily a bad thing. Many breed enthusiasts worry that lists or certain dog-themed movies encourage consumers to rush out and buy the breed du jour without doing the proper research.
"Everybody thinks their breed is the best kept secret," Okas said.
Though the lovable lab is hardly a secret, the recent box-office hit "Marley & Me," based on a newspaper columnist John Grogan's life with an unruly Labrador, has caused a surge in interest.
Kelly said she received a phone call Tuesday from a woman who had seen the movie and wanted a lab like Marley even though she'd never before owned a dog.
Kelly remembered wanting a Dalmatian as a child after seeing the movie "101 Dalmatians." She never got one, but that movie, she said, caused a surge in Dalmatians surrendered to shelters by owners who weren't prepared for the breed's demands.
Bulldogs continued their climb up the AKC list this year to rank No. 8, up from No. 10 in 2007 and No. 23 in 1998. The breed's showing in 2007 marked the first time in 70 years that the bulldog cracked the Top 10.
The bulldog also made the Top 10 in nearly every one of the 50 cities ranked by the AKC.
Barbara Dannewitz, the secretary for the Chicago Bulldog Club, said she wasn't especially pleased with the bulldog's rising popularity. She owns four, including a 6-month-old puppy named Nugget.
"I think you tend to have people breed them for money," she said. "It tends to destroy breeds."
There have been a number of breeds, German Shepherds among them, which have seen a spike in health complications reportedly from poor breeding ethics.