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More on "The Secret Lives of Pets"

Meet the scientists behind tonight's show, and see more of The Good Line's film: Puppy Love.


John Bradshaw

John Bradshaw is the director of the Anthrozoology Institute at the University of Bristol in England. The author of “Cat Sense” and “Dog Sense” has studied domestic dogs and cats for over two decades. “The difference between cats and dogs is that dogs will do things for you. They'll do things because they want to please you,” Bradshaw told NBC News. “Cats do things because there's something in it for them. They're a little bit more calculating.” Click here to learn more about Bradshaw.

Brian Hare

Brian Hare is the director of Duke University’s Canine Cognition Center. He is also the cofounder of Dognition, which helps dog owners assess the personality of their pooches. Hare describes dogs as “flexible problem solvers” with different cognitive abilities. “They have personalities, they're totally individuals,” Hare told NBC News. “I think what the best science, and Dognition being part of that, can help with is to help you understand your dog as an individual.” Click here to learn more about Dognition.

Alexandra Horowitz

Alexandra Horowitz, a professor at Barnard College, studies dog cognition and is the author of “Inside of a Dog”. Horowitz says that a dog’s life is centered on its nose. “It does seem like smell even allows them to detect emotions, on some level because they're smelling chemicals in the air called pheromones,” Horowitz said. “So when we're crying, or you're sad, you're going to be emitting some pheromone which is detectable by a dog.” Learn more about Dr. Horowitz’s work by clicking here.

Robert Haussmann

Robert Haussmann, also known as Dogboy, is a dog trainer based in Brooklyn, New York. Haussmann specializes in helping owners raise dogs in urban areas. “The hardest lesson for somebody with a dog to learn is that dogs are not thinking like human beings,” Haussmann told NBC News. “Dogs are thinking like dogs, and they have to learn how to communicate from human being to dog and be successful at it.” Click here to learn more about Dogboy.

Mieshelle Nagelschneider

Mieshelle Nagelschneider, a Harvard trained cat behaviorist, calls herself the cat whisperer. Nagelschneider says the biggest misconception about cats is they’re aloof. “I always tell everyone, look at the world through the cat’s eyes,” she told NBC News. “But that is how we will fully really understand them, you know? And they will be able to coexist with us.” Click here to learn more about Nagelschneider and her work.

SEE MORE OF THE GOOD LINE'S FILM: Puppy Love- Dog Kisses, Cuddles, and Licks in Slow Motion