David Pattyn / Great egret (Ardea alba) silhouet perched in a tree after sunset, Gambia Africa, May.

David Pattyn / Globe Thistle (Echinops ritro), dead in winter landscape with Alpine ibex (Capra ibex) silhouet behind, Gran Paradiso national park, Italian Alps, Italy, January

David Pattyn / Mantled howler monkey (Alouatta palliata) silhouet jumping from tree to tree La Selva biological research station, Heredia, Costa Rica La Selva Biological research station, Heredia, Costa Rica.. July