Drawing is essential to understanding a creature's form and anatomy. After teaching sculpture workshops for over 25 years, I continue to encourage students to observe their subjects through drawing. Look at the drawings of the great animal artist Bob Kuhn: They are studies in structure, design, and the animal's individual characteristics.
Shown is my recent sculpture of Swamp Buck . . . below a Bob Kuhn conte' drawing of deer. Sculpture is three-dimensional drawing and drawing is vital to creating art.