Most printable animals are stylized — rounded into a cartoon, or simply wrong. We work the other way around. Each animal starts as a slow pencil study: proportion, posture, the way the body actually sits and moves.
Only once the drawing is true does the colour go on. The watercolor lays over the same lines, so the finished illustration carries the anatomy of the study underneath — a sea lion's flippers, a kudu's spiral horns, a leopard's rosettes, each drawn the way it really is.
Nothing is invented to look pretty. The detail is there because it is true — and because what a child learns should be true.