But, my guess is that when he is calm, he develops respiratory sinus arrhythmia, a normal condition that commonly occurs when a dog’s heart rate decreases with relaxation. Not all arrhythmias ...

"As far as we're aware, there are no existing databases of heart sounds in dogs, which is why we started out with a database of heart sounds in humans," he said. "Mammalian hearts are fairly ...

Meera Pal is a Northern California-based writer with a background in journalism and books. She covers pets, real estate, tech, and everything in between. You can follow her on Twitter @Meerakat ...

He added: "As far as we’re aware, there are no existing databases of heart sounds in dogs, which is why we started out with a database of heart sounds in humans. "Mammalian hearts are fairly ...