the close-up image of a pufferfish's spines highlights its formidable defense mechanism, ed to deter predators

pufferfish spines defense mechanism protection deterrent predator closeup sharp formidable nature marine fish aquatic species safety survival strategy adaptation threat warning spikes texture armor caution resilience underwater creature ocean biology anatomy wildlife hazard reaction evolution defensive instinct environment danger security marinelife behavior deterrence selfdefense toughness alert defensesystem natural shield close-up pufferfish#39aph39#s highlights designed deter predators