frog anatomy 3d model

Create an anatomically accurate 3D model of selected male frog internal structures only. Include two small, smooth, pale oval testes positioned symmetrically. Above each testis, model yellow, thin, finger-like fat bodies branching upward in multiple lobes. Below and centered behind the testes, include a tubular rectum structure extending downward, cylindrical and slightly tapered, realistic amphibian anatomy. Do NOT include kidneys, ureters, bladder, cloaca chamber, digestive organs other than the rectum, heart, lungs, skeleton, muscles, skin, or full frog body. Strict amphibian proportions based on real frog dissection diagrams. Testes must be small and not mammalian in appearance. Scientific, realistic, educational model. Neutral background. Non-stylized. Clean topology suitable for integration into an existing frog organ system.