First developed by scientists in 1977, the process of diaphonisation is also referred to as clearing and staining after its dual mechanism of action. To render the animals transparent (the clearing), the specimens bathe in a soup of trypsin, a digestive enzyme that slowly breaks down their flesh. You will receive one adult mouse in a glass vial. All specimens have died from natural causes, and the condition of your specimen may reflect this. Please see photos for a true representation of the specimens you may receive.