Steven David Miller / Whiptail wallaby female {Macropus parryi} Queensland, Carnarvon NP, Australia

Gerry Ellis / Coastal dunes with Sea Oats, Pea Island National Wildlife Refuge, Outer Banks, North Carolina

Gerry Ellis / Brackish channels in marsh, Pea Island National Wildlife Refuge, Outer Banks, North Carolina

Gerry Ellis / Great Egret (Ardea alba) amid marsh grasses, Pea Island National Wildlife Refuge, Outer Banks, North Carolina

Roland Seitre / Koa (Acacia koa) with lichen covered branches, Hakalau forest National Wildlife Refuge, Hilo, Big Island, Hawaii.