This gorilla skull model was cast from a replica of the original gorilla skull specimen from the Senckenberg Research Institute and Natural History Museum in Frankfurt/Main. This replica of Gorilla gorilla is a skull cast of high quality with anatomical detail true to nature. The gorilla skull has an anatomically correct movable lower jaw for easy demonstration of natural gorilla movement. This gorilla skull is great for mammalogy and comparative anatomy studies. Its a great tool for any biology classroom! This animal skull is made of unbreakable plastic.