For beginners, rigging a creature 3D model involves 3 core steps: building an anatomy-matching skeleton (e.g., a dragon’s spine or bird’s wings), binding the mesh to bones (skinning), and testing basic movements to fix unnatural deformations (like stretched joints).
Focus on key bones first—spine, limbs, wings—before adding small details. Use automatic skinning tools (common in Blender or Maya) to start, then tweak "weight painting" to adjust how much each bone affects the mesh (e.g., ensuring a knee bends without tearing the leg).
If you’re new, try Blender’s free tutorials for simple creatures (e.g., a dog) or use the "Auto-Rig Pro" add-on to simplify setup—practice with basic models before moving to complex ones.