Rana esculenta. After Christian Groß, Head of Biology Department (retired). Enlarged approx. 4 times, in SOMSO-Plast®. The model shows a male water frog with spread out legs and inflated vocal sacs. The back view shows the characteristics of form, colour and marking. Liver, and stomach-intestine-tract are removable to show the position of the internal organs in stages. The hind legs can be removed at the thighs. The urinary and genital organs of a female water frog are shown on a supplementary model for comparison. Separates into 5 parts. On a stand and green base.