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siamese fighting fish jar

siamese fighting fish jar
Further, an analogous fighter and wild type strains showed transformations in male cortisol reaction to unfamiliar environments, with wild types, but not combatants increasing cortisol levels . Taken in combination, the effects from these experiences suggest that choice for profitable has changed aggressive behaviour and physiological responses in B. splendens. We compared the behaviour of a wild type and a fighter strain of B. splendens Fig. 1.