Milkweed produces toxins to deter herbivores, but monarch caterpillars have adapted to be resistant and actually use the toxins to deter their own predators. What is this an example of?

Question

Quizplus · Accepted Answer

This is an example of an evolutionary arms race, where species evolve adaptations and counter-adaptations in response to each other, such as the milkweed's toxins and the monarch caterpillar's resistance to them.

Milkweed Produces Toxins to Deter Herbivores, but Monarch Caterpillars Have