Abstract: The invention relates to a hibernator suitable for keeping under permanent refrigeration a cadaver placed in a desired position and constantly visible from the outside. The hibernator consists essentially of a structure whose refrigerated and fluid-tight upper part (1) serves as a resting place for the being to be preserved, with at least a double-glazed wall; and whose lower part (2) or base is intended to house the refrigerating unit (3) and various technical elements including pipes (22 to 24) to assure partial vacuum in determined sectors of the structure of the resting place. Also disclosed is a process for preservation and showing of cadavers which have previously been frozen or imprisoned in blocks of translucid ice.