Intraspecific competition: A missing link in dermal armour evolution?

Area of Science:

• Evolutionary Biology
• Animal Behaviour
• Biomimetics

Background:

• Dermal armour is often linked to predation as a selective force.
• The direct link between predation and armour evolution is difficult to assess.
• Intraspecific competition is an under-explored factor in armour evolution.

Purpose of the Study:

• To propose the fighting-advantage hypothesis for dermal armour evolution.
• To suggest that aggressive intraspecific interactions, not predation, are key selective pressures.
• To explore overlooked aspects of dermal armour's functional and evolutionary significance.

Main Methods:

• Conceptual framework and hypothesis proposal.
• Review of existing literature on dermal armour and animal conflict.
• Theoretical analysis of selective pressures in armour development.

Main Results:

• The fighting-advantage hypothesis posits intraspecific aggression as a primary driver of dermal armour.
• This perspective challenges the traditional focus on predation.
• Understanding this link can inform biomimetics and technological innovation.

Conclusions:

• Intraspecific competition may be a more significant selective force in dermal armour evolution than predation.
• The fighting-advantage hypothesis provides a novel framework for studying armour.
• This research opens avenues for biomimetic applications inspired by animal defence mechanisms.