Study similarities and differences between animals. Examine real x-rays printed on clear, heavy-duty plastic, showing mammals, reptiles, fish, amphibians and birds. Roylco Animal X-Ray Set includes 14 real x-rays with matching picture cards....

Insect X-rays and Picture Cards Set gives you three different views of your favorite insects and arthropods: the top, the bottom and the inside. Match up all 36 insect x-rays to the double sided, sturdy picture cards. Picture cards are durable....