Ecological aspects of unusual findings of animals nesting inside a mummified human corpse in natural conditions

We report, for the first time, a case of nesting by Apis mellifera mellifera (L., 1758) (Insecta: Hymenoptera: Apidae), Vespula vulgaris (L., 1758) (Insecta: Hymenoptera: Vespidae), and Sciurus vulgaris L., 1758 (Mammalia: Rodentia: Sciuridae) inside a mummified human corpse in natural conditions (Lower Silesia province, south-western Poland). A case history, autopsy findings, and biological observations are provided. A list of the insect species found in the corpse is provided and compared with available data. Other zoological findings are mentioned and briefly discussed.