monarch butterfly only lays her eggs on milkweed, the species can’t exist without it. While adult monarchs eat the nectar of many types of flowers, they only breed on milkweed.
The larvae receive nourishment from the plant as well, allowing them to develop into adult monarchs. Humans have mistaken the milkweed as a noxious everyday weed, which removes a vital habitat and food source for the monarch.The monarch ingests toxins in the milkweed, making them poisonous to predators, yet they don’t harm the butterfly.
Milkweeds have certain chemical compounds, including a cardiac poison, that would seriously injure or kill vertebrates. These toxins help protect the monarchs as adults because the vibrant coloring of their wings warns predators to.
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