Ashley Cooper / Cloud seeding canon, on the outskirts of Harbin city, Heilongjiang province, Northern China. March 2009. Used to produce clouds and therefore rain during severe drought.

Ashley Cooper / Cloud seeding canon on the outskirts of Harbin city in Heilongjiang province. This is used to produces clouds and therefore rain during severe drought, Northern China, March 2009.

Christian Ziegler / Warty Hammer Orchid (Drakaea livida) flower has hinge mechanism to manipulate its pollinator into just the right position to receive its pollen, south of Perth, western Australia

Michael & Patricia Fogden / Hog-nosed Pit Viper (Porthidium nasutus) swallowing a Rain Frog (Eleutherodactylus sp) note use of fangs to manipulate frog into mouth, rainforest, Costa Rica

Michael & Patricia Fogden / Hog-nosed Pit Viper (Porthidium nasutus) swallowing a Rain Frog (Eleutherodactylus sp) note use of fangs to manipulate frog into mouth, rainforest, Costa Rica

Michael & Patricia Fogden / Hog-nosed Pit Viper (Bothrops nasutus) predating Middleamerican Ameiva (Ameiva festiva) lizard note the use of fangs to manipulate prey into snake's mouth, rainforest, Costa Rica