Which breed of dog typically has a higher pulse rate, smaller breeds or larger breeds?

Smaller breeds of dogs typically have a higher pulse rate compared to larger breeds. This is largely due to their overall body size and metabolic rate. Smaller dogs have a faster metabolism which necessitates a quicker heartbeat to support their physiological processes and energy levels.

For instance, it is common for small dog breeds, such as Chihuahuas or Dachshunds, to have resting pulse rates that can range between 100 to 160 beats per minute, while larger breeds, such as Great Danes or St. Bernards, usually have a resting pulse rate of around 60 to 100 beats per minute.

This relationship between size and pulse rate is a general trend observed among canines, highlighting how body size influences physiological characteristics like heart rate. Thus, smaller dog breeds are recognized for their higher pulse rates, providing key insights into their care and health monitoring needs.