Today, I explored the dark side of insect chemistry: parasites that hijack insect chemical signals to benefit themselves. Some parasitic fungi release chemicals mimicking host pheromones, manipulating behavior to spread infection.
For example, the fungus Ophiocordyceps infects ants, altering their behavior to climb plants and die in places optimal for fungal spore dispersal.
Other parasites produce chemicals that suppress host immune responses or disrupt social signals, weakening colonies.
In my journal:
“Chemical deception — parasites rewriting insect communication for their own gain.”
Next episode: the chemical basis of insect navigation.
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