Floris van Breugel / Japanese maple (Acer palmatum) leaves floating in a small pond in late autumn in Seattle's Washington Park Arboretum. Washington USA

Oliver Hellowell / Maple leaves (Acer sp) in autumn, Westonbirt, England, UK.

Doug Wechsler / Ambush bug (Phymata sp) on Black-eyed susan (Rudbeckia hirta) on shield bug prey, Morris Arboretum, Philadelphia, Pennsylavania, USA. August.

Doug Wechsler / Wide-footed treehopper (Campylenchia latipes) on Black-eyed susan (Rudbeckia hirta) stem, Morris Arboretum, Philadelphia, Pennsylavania, USA. August.

Doug Wechsler / Wavy-lined emerald moth caterpillar (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Morris Arboretum, Philadelphia, Pennsylava...

Doug Wechsler / Wavy-lined emerald moth caterpillar (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Morris Arboretum, Philadelphia, Pennsylava...

Doug Wechsler / Wavy-lined emerald moth caterpillar (Synchlora aerata) which camouflages itself by attaching parts of flower to itself, on Black-eyed susan (Rudbeckia hirta) Morris Arboretum, Philadelphia, Pennsylava...

Doug Wechsler / Walnut lace bug (Corythuca juglandis) on Manchurian Walnut leaf; Morris Arboretum, Philadelphia, Pennsylvania, USA, August.

Doug Wechsler / Red-eared slider (Trachemys scripta) and Painted turtle (Chrysemy picata) basking on log, Morris Arboretum, Philadelphia, Pennsylvania, USA, April.

Doug Wechsler / Northern water snake (Nerodia sipedon sipedon) mating behavior; Morris Arboretum wetlands, Pennsylvania, Philadelphia, Pennsylavania, USA. May.

Doug Wechsler / Milkweed stem weevil (Rhyssomatus lineaticollis) feeding on common milkweed sap Morris Arboretum, Philadelphia, Pennsylavania, USA. August.

Doug Wechsler / Painted turtle (Chrysemys picta) basking on log above water, Morris Arboretum, Philadelphia, USA