How did the electric organ of Astroscopus y-graecum evolve?
Answer
From modified muscle tissue behind the eyes
The text explicitly states that the specialized defense systems in certain stargazer species, such as Astroscopus y-graecum, which generate an electric shock, involve modified muscle tissue located behind the eyes. Uniquely, these fish evolved this electric organ from their existing eye muscles rather than developing specialized electroreceptors. The purpose of this electrical discharge is exclusively to deter predators, not to stun prey items captured for consumption.
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