Reference: American Kennel Club (AKC), Labrador Retriever breed standard
More dog facts.
Prairie dogs, those little pups popping in and out of holes on vacant lots and rural rangeland, are talking up a storm. They have different "words" for tall human in yellow shirt, short human in green shirt, coyote, deer, red-tailed hawk and many other creatures.
Ironically, the Labrador Retriever comes from Newfoundland, not Labrador. It descends from the St. John's water dog, which fishermen used to haul in nets and fetch fish that escaped from lines.
Many Labrador Retrievers are genetically wired to be hungry. A 2016 University of Cambridge study found that about 23% of Labs carry a mutation in the POMC gene that disrupts their sense of fullness. That helps explain why Labs are famous for begging and prone to obesity.