Dogs that scored higher on a modified Wesen temperament test also tended to show lower salivary cortisol concentrations before and after testing, along with higher baseline salivary serotonin, ...

For these dogs, the salivary cortisol samples were taken both before and after the Wesen test. Those that scored higher for ...

Popular genetics tests can’t tell you much about your dog’s personality, according to a recent study. A team of geneticists recently found no connection between simple genetic variants and behavioral ...

Calmer dogs show lower stress hormones and higher mood chemicals during temperament tests using saliva samples.

Dogs who scored well on the Wesen test, which is used to analyze a dog's temperament, tended to have lower levels of cortisol, often called the ...

Grey, a 5-month-old Border Collie puppy is about to meet sheep for the first time. “If he goes out there and just shows a bit of enthusiasm and keenness, that’s good,” his handler, Emma, says on the ...

If it feels like your dog is constantly "testing" you, a trainer told Newsweek that you may be reading the behavior wrong.

Flat-faced dogs like Pugs and Frenchies may seem extra friendly, but new research shows size, training, and “spoiling” often shape their behavior more than head shape – though some traits are likely ...

These 14 very intelligent dog breeds stand out for their problem-solving skills, independence, and strong personalities that often test their owners’ patience ...