Butterfly lovers gift - Butterfly Earrings

Monarchs have evolved a special means by which to avoid being eaten by predators. The sap of the milkweed that they eat as a caterpillar contains a chemical which tastes terrible to most birds. Birds attempting to eat a monarch butterfly soon spit it out. A monarch's bright colors are a signal to predators of its bad taste. In addition, viceroy butterflies, which are unrelated to monarchs but look almost exactly like them, are not bad tasting to birds, but may have evolved to look like monarchs and thereby avoid being eaten. Monarch butterflies journey from the Great Lakes to the Gulf of Mexico, a distance of about 2,000 miles, and return to the north again in the spring.