"Running Lion - Cardio"
This was from an image from a text book when I was taking a physical education class in college. It was actually strangely interesting and enjoyable to read, and I just find science very fascinating in general.
Was brushing up on my scientific illustration as well wanting to post this to the furry community, as the majority of the furry community I know are in need to take care of their health. (light cough cough wink wink cough)
**Note: Please go at your pace and do not go crazy if you are a beginner (or advanced for that matter). Health is a journey, not a sprint.