The dog is the most companionate animal in human history. The relationship between dogs and humans started over 15,000 years ago when humans began to intentionally breed dogs and domesticate them. The 4D Vision Golden Retriever Anatomy Model is an educational science model with 30 fully detachable organs and body parts. The model has a transparent cutaway to show internal structures. It is designed with Master sculpturing, a highly detailed finish, and 30 detachable parts, making this Golden Retriever an exquisite educational tool. Includes 30 Fully Detachable Organs and Body Parts with Stands, Illustrated Guide Book Recommended for 1 player, ages 8 and up WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years of age Made in China Imported Product Specifications Package dimensions: 14.75 in L x 10.88 in W x 3.15 in H Material & Care Plastic Spot clean only