Replaceable You: Adventures in Human Anatomy by Mary Roach Keychains & More Human humerus bones measuring approximately

Human humerus bones measuring approximately 11"-13” long

These items come from the natural world and will display some variations in color

Alectoris chukar skull measures about 3"

Its distinctive golden-brown cap and dark spores aid in identifying this species among other mushrooms

18th-century stuntmen

Replaceable You: Adventures in Human Anatomy by Mary Roach Keychains & More Human humerus bones measuring approximatelyThe body is the most complex machine in the world, and the only one for which you cannot get a replacement part from the manufacturer. For centuries, medicine has reached for whats availablesculpting noses from brass, borrowing skin from frogs and hearts from pigs, crafting eye parts from jet canopies and breasts from petroleum by products. Today were attempting to grow body parts from scratch using stem cells and 3D printers. How are we doing? Are we