Are the viceroy's adaptations as effective as the monarch's?

The viceroy butterfly has evolved to mimic the appearance of the monarch butterfly as a form of protection from predators. While the viceroy's adaptations are effective in providing some level of defense, they are not as potent as the monarch's adaptations. The monarch butterfly's toxicity from consuming milkweed as a caterpillar provides a higher level of protection compared to the viceroy's mimicry strategy.