Diagnostic dilemma: A fish stabs a man through the throat and the base of the skull - Live Science

A study of nearly 200 individuals buried in domestic contexts in ancient and Viking Age Scandinavia has revealed unusually high levels of violence.

Osiride statues of Hatshepsut, a standing statue of a pharaoh in the form of a mummy set on the upper terrace of the Pharaoh Queen. Forensic reexaminations of 5,000-year-old skulls indicate over a dozen ancient Egyptian royal attendants met gruesome ends to honor their beloved, deceased pharaohs. The recent findings, detailed in a study published today in the journal Frontiers in Environmental Archaeology, finally explain a collection of cold cases that have puzzled researchers for nearly a century.

Researchers at Washington University School of Medicine in St. Louis have identified previously unknown lymph node-like immune structures in the skull bone marrow of mice. The findings suggest these nearby immune hubs can respond rapidly to brain cancer, becoming active before more distant lymph nodes even receive signals that something is wrong. The team also found evidence of similar immune cells in human skull bone marrow, suggesting that this local defense system may not be limited to mice.