ZBrush for Digital 3-D Printing - ZBrush Creature Design: Creating Dynamic Concept Imagery for Film and Games - page 729

Figure 11-35: Shifting the big toe away from the other digits and working the shape of the foot from the
bottom view
3. At the ankle, use the Move brush to pull out a claw appendage. This is a kind of vestigial toe that helps
add interest to this part of the anatomy and adds another sharp, aggressive element ( Figure 11-36 ) . This
appendage is suggestive of a dog's dewclaw.