Some flowering plants are pollinated by honeybees. At some time in the past, honeybees evolved the ability to see ultraviolet radiation. Some flowers have evolved to produce ultraviolet markers on their petals that direct honeybees to the reproductive parts of the flower. What is this an example of?

This is coevolution: two interacting species influence each other’s evolution over time. Honeybees evolved ultraviolet vision, and some flowers evolved ultraviolet petal markers that help guide the bees to reproductive parts, benefiting both pollination and the bees’ ability to find flowers. Mutualism describes the beneficial relationship, but the question specifically asks about the evolutionary changes in both species.

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