User:Daynafreeman/Lanternfish

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Hormonal thresholds for bioluminescence in E. molleri

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In contrast to other members of the Etmopterus genus, such as Etmopterus spinax, Etmopterus molleri expressed weaker light emissions modulated by prolactin than melatonin. Overall, however, E. molleri require a higher threshold of either hormone to produce luminescence than E. spinax.