Sperm Whale territorial fight, Physeter macrocephalus, Caribbean Sea, Dominica

Sperm Whale territorial fight, Physeter macrocephalus, Caribbean Sea, Dominica

Snorkeler and excrements of Sperm Whale, Physeter macrocephalus, Caribbean Sea, Dominica

Snorkeler and excrements of Sperm Whale, Physeter macrocephalus, Caribbean Sea, Dominica

Sperm Whale, Physeter macrocephalus, Caribbean Sea, Dominica

Sperm Whale, Physeter macrocephalus, Caribbean Sea, Dominica

Great White Shark, Carcharodon carcharias, Guadalupe Island, Mexico

Three types of renewable electricity generation on Newton Down, wind turbine, solar panels and, in the shed, anaerobic digestion, Newton Down, Porthcawl, South Wales, United Kingdom, Europe

Common wasp yellow jacket, vespula vulgaris, feeding from eating apple on tree in English countryside, UK

Common wasp yellow jacket, vespula vulgaris, feeding from eating apple on tree in English countryside, UK

Pod seeds of Malunggay (Moringa oleifera Lam), a useful plant promoting good eyesight, digestion, and a cure for stomach ache

Lemongrass, used in cooking and for detoxifying the liver, kidney, bladder and digestive tract, reducing cholesterol, stimulating digestion and circulation, Southeast Asia, Asia

Lemongrass, used in cooking and for detoxifying the liver, kidney, bladder and digestive tract, reducing cholesterol , stimulating digestion and circulation, Southeast Asia, Asia

Gastric Ulcer, Illustration

Gastric Ulcer, Illustration

Woman with fingers forming heart around navel, close-up

Digestion tanks, sewage work, Emscher wastewater treatment plant, Bottrop, Ruhr area, North Rhine-Westphalia, Germany, Europe

Aerial view, EmscherKunst art project, Silke Wagner, Glueckauf, Bergarbeiterproteste im Ruhrgebiet art project, digestion tank, Emscherkunst.2010 art project, art works on the Emscher river, Recklinghausen, Ruhr area, North Rhine-Westphalia, Germany, Euro

Aerial photo, Emscher sewage treatment plant with digestion towers at night, Kolonie Emscher, Bottrop, Extraschicht 2009 cultural festival, night flight, Bochum, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

Digestion tank, sewage work, Emscher wastewater treatment plant, Bottrop, Ruhr area, North Rhine-Westphalia, Germany, Europe

Reactors of one of the anaerobic digestion plants belonging to the Hoogen Bioenergie & Co. KG Company, Senftenberg, Germany, Europe

Aerial view, EmscherKunst art project, Silke Wagner, Glueckauf, Bergarbeiterproteste im Ruhrgebiet art project, digestion tank, Emscherkunst.2010 art project, art works on the Emscher river, Recklinghausen, Ruhr area, North Rhine-Westphalia, Germany, Euro