Sexually selected weapons can wear out, decreasing their effectiveness in combat
Sexual selection has resulted in some of the most elaborate traits seen in animals, many of
which are used as weapons. These weapons can be incredibly diverse, even within species …
which are used as weapons. These weapons can be incredibly diverse, even within species …
Extreme range in adult body size reveals hidden trade-offs among sexually selected traits
Sexually selected weapons used to monopolize mating opportunities are predicted to trade-
off with traits used in competition for fertilization. Yet, the limited size range typically found …
off with traits used in competition for fertilization. Yet, the limited size range typically found …
Sexual dimorphism in head size in wild burying beetles
JML Smith, AM Catherall‐Ostler… - Ecological …, 2024 - Wiley Online Library
The burying beetle (Nicrophorus vespilloides) is thought to be predominantly sexually
monomorphic. Males carry an additional abdominal segment and produce pheromones, but …
monomorphic. Males carry an additional abdominal segment and produce pheromones, but …
Sexually selected shields: male–male combat can promote the evolution of damage-reducing structures
Highlights•We tested damage resistance of structures in the fighting insect P.
neocalifornicus.•Male cuticle was harder to puncture than female cuticle.•Sexual dimorphism …
neocalifornicus.•Male cuticle was harder to puncture than female cuticle.•Sexual dimorphism …