Heather Angel / Monarch butterflies (Danaus plexippus), three nectaring on Poinsettia (Euphorbia pulcherrima), resting on red bracts. In butterfly house, Xishuangbanna, Yunnan Province, China.

Claudio Contreras / Poinsettia (Euphorbia pulcherrima) flowers, in a chinampa wetland agricultural system, Xochimilco wetlands, Mexico City, November