Posts about butterfly

Monarch Butterflies Use Medicinal Plants

Monarch butterflies eat toxic plants (that they have evolved to tolerate and make the butterflies themselves toxic to predators). They use medicinal plants to treat their offspring for disease, research by Emory biologists shows. When the butterflies are infected by certain parasites the butterflies have a strong preference to lay their eggs on a plant (tropical milkweed) that will help the caterpillar fight the parasite when it eats those leaves (it serves as a drug for them). Their experiments may be the best evidence to date that animals use medication.

Related: Monarch Migration ResearchMonarch Butterfly MigrationEvolution at Work with the Blue Moon Butterfly

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