Season 2 EP 178
"For dogs, a normal heartbeat varies on size: Small dogs and puppies normally have heart rates of 120 to 160 beats per minute. Dogs over 30 pounds have heart rates of 60 to 120. The larger the dog, the slower the normal heart rate, between 160-200 beats per minuteThe normal heart rate in a cat at REST is between 160-200 beats per minute. Similar to how you count your cat's respiratory rate, you can count your cat's heart or pulse rate at home. Place your hand over their chest just behind their elbow and try to count the number of beats in 15 seconds and multiply it by 4."