Fossil analysis reveals oldest known example of sexual combat weapon

Fossil analysis reveals the oldest known example of a sexual combat weapon (Madison Mullen/NHM/PA)

Scientists have revealed the oldest known example of a sexual combat weapon similar to the structures found in modern-day rhino beetles.

A unique specimen of a trilobite trident, showing four rather than three tines (or prongs), suggests the structures may have been used for combat rather than feeding, as previously thought.