Four new pictures for the original Bing Dynamic RSS Windows 7 Theme were added this week.

Butterflies sipping water and minerals from a riverbank in Manu National Park, PeruHo'okipa beach covered with windsurfer boards, Maui, Hawaii
Trunk Bay on St. John, U.S. Virgin IslandsSunset of Elliott Bay taken from the Space Needle, Seattle, Washington

This update has two shots that are similar.  One has live butterflies – and one is an image that looks like butterflies!