Cardiovascular System: What activities change heart rate?
Heart Rate in Humans and Dogs
Circulatory System is also known as the Cardiovascular System
Root Words: Cardio - Heart. and Vascular - Blood Vessels
How to measure? Once you've found the pulse, use a timer and count the beats for 30 seconds. Multiply that number by 2. The is the BPM or Beats Per Minute
How quickly does heart muscle beat in our pets? https://www.cuteness.com/article/check-heart-rate
These are some Fun Facts: https://cvm.ncsu.edu/10-amazing-animal-heart-facts/