Diaphanized Fetal Mouse in 1.5” Jar Diaphanization is the chemical process of staining the bones and cartilaginous tissues then rendering the flesh transparent so as to provide a non-invasive means of studying the anatomy and osteology of a specimen. Modern protocols were introduced and perfected by scientists in the 70’s, but the concept dates back over 100 years. You will receive (one) 1.5 inch jar featuring your specimen with purchase. Please choose your color. Because these were fetal feeder mice, please expect imperfections and differences from specimen to specimen.