Bernard Castelein / Two Assamese Macaque (Macaca assamensis) mutually grooming. Tawang, Arunachal Pradesh, India, February.

Rolf Nussbaumer / Two-Tailed swallowtail butterfly (Papilio multicaudata), adult perched on Texas Bluebonnet (Lupinus texensis), Texas, USA. April

Rolf Nussbaumer / Two-Tailed Swallowtail {Papilio multicaudata} on Texas Buckeye (Aesculus glabra) Hill Country, Texas, USA