The Postman and Red Postman #butterflies release cyanide.
Predators have learnt not to take a bite.
Thus, the Postmen help even Sypho and Cydno longwing butterflies as all participate in #MullerianMimicry.
#HeliconiusMelpomene #HeliconiusErato
#ecology #biology #maps #biodiversity
#Heliconius
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