Much of what makes animations“feel” good is based on evoking a sense of natural rhythm and timing. In the late 1800s, Eadweard Muybridge studied the movements of animals by documenting motion through photographs. In his studies, he created a stop motion effect that allowed us a glimpse into how creatures move. As still images, you can observe the physiology of the animal, and in motion, you can see it come to life. While the photos are doing the heavy lifting, imagine what this animation would look like if the timing was off.
Muybridge Horse at a constant frame rate of .1 seconds
After Effects Basics