Vermont-based knitter Emily Stoneking runs an anatomical knitting brand called aKNITomy where she transforms fluffy skeins of yarn into the anatomical details of rats, frogs, people, and other creatures. Stoneking—who is admittedly not a scientist—likes to approximate the form and style seen in most anatomical illustrations with clear colors and distinct forms that may not be 100% accurate but are fun to look at nonetheless.
The specimens are available as both completed pieces and downloadable patterns, so you can ditch the formaldehyde and get a PDF knitting guide.
Gunsmoke and Knitting 