The Palos Verdes blue butterfly, now thought extinct (Glaucopsyche lygdamus palosverdesensis). This photo was taken at the Maguire Center for Lepidoptera and Biodiversity, Gainesville, FL. This is located on the campus of the University of Florida and is part of the Florida Museum of Natural History.
Two male Attwater’s prairie-chickens fight for dominance and position at The Nature Conservancy’s Texas City Prairie Preserve. Though fights are common, the birds are seldom injured. The strongest males usually end up in the center of the booming ground, displaying and squabbling constantly with other males in case a female flies in to select a mate.