Butterfly Talk! (Oyamel)

Have you ever seen a column of gold (orange)? It may just be an oyamel (Abies religiosa), the sacred fir. Every year countless Monarch butterflies pilgrimage to the mountains of Mexico to spend their winter months clinging to these trees, but why? (Spoiler: we don't know.) See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.