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Bottle tree in bloom (Adenium obesum), endemic tree of Socotra, Homhil Protected Area, island of Socotra, UNESCO World Heritage Site, Yemen, Middle East

Bottle tree in bloom (Adenium obesum), endemic tree of Socotra, Homil Protected Area, island of Socotra, UNESCO World Heritage Site, Yemen, Middle East

Bottle trees in bloom (Adenium obesum), endemic tree of Socotra, Homil Protected Area, island of Socotra, UNESCO World Heritage Site, Yemen, Middle East

Dracaena cinnabari (the Socotra dragon tree) (dragon blood tree) forest, Homil Protected Area, island of Socotra, UNESCO World Heritage Site, Yemen, Middle East

Bottle trees in bloom (Adenium obesum), endemic tree of Socotra, Homil Protected Area, island of Socotra, UNESCO World Heritage Site, Yemen, Middle East

Frankincense trees (Boswellia elongata), Homil Protected Area, island of Socotra, UNESCO World Heritage Site, Yemen, Middle East

Bottle tree in bloom (Adenium obesum), endemic tree of Socotra, Homil Protected Area, island of Socotra, UNESCO World Heritage Site, Yemen, Middle East

Frankincense trees (Boswellia elongata), Homil Protected Area, island of Socotra, UNESCO World Heritage Site, Yemen, Middle East

Manta ray (Manta birostris) feeding on zooplankton by extending its cephalic lobes, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Whale shark (Rhincodon typus) feeding at the surface on zooplankton, mouth open, known as ram feeding, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Male manta ray with almost pure white ventral surface, may be a new species, for now known as Manta alfredi, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Eagle rays (Mobula hypostoma) common in this area and often seen feeding on zooplankton in large groups, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Scientist and whale shark (Rhincodon typus) feeding at the surface on zooplankton, mouth open, known as ram feeding, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Manta ray (Manta birostris) feeding on zooplankton by extending its cephalic lobes, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Biologist taking skin sample from a whale shark to determine what plankton types the animal has been feeding on, Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Scientist free diving to make a photo identification of an individual manta ray (Manta birostris), Yum Balam Marine Protected Area, Quintana Roo, Mexico, North America

Mist rises from primary rainforest at dawn, Maliau Basin Conservation Area, Sabah, Borneo, Malaysia, Southeast Asia, Asia

Mist rises from primary rainforest at dawn, Maliau Basin Conservation Area, Sabah, Borneo, Malaysia, Southeast Asia, Asia

The quiet village of Taganana within the Anaga Rural Park, an area of outstanding natural beauty with walking trails, Tenerife, Canary Islands, Spain, Atlantic, Europe

View west from Area Recreativa El Alcazar, Sierra Tejeda Natural Park, Alcaucin, Axarquia, Andalusia, Spain, Europe

Cutting Edge steel wall and cascading water feature outside Sheffield railway station, Sheffield Gateway, Sheffield, Yorkshire, England

Diamond Building, housing Faculty of Engineering, University of Sheffield, Leavygreave Road, St. George's Quarter, Sheffield, Yorkshire, England

Rainforest in Tully Gorge National Park, part of the Wet Tropics World Heritage Area, UNESCO World Heritage Site, near Ravenshoe, Queensland, Australia, Pacific

Impala (Aepyceros melampus) doe and minutes-old calf, Ngorongoro Conservation Area, Tanzania, East Africa, Africa

African Elephant (Loxodonta africana), male, Ngorongoro Conservation Area, Tanzania, East Africa, Africa

Common Zebra (Plains Zebra) (Burchell's Zebra) (Equus burchelli) drinking, Ngorongoro Conservation Area, Tanzania, East Africa, Africa

African Elephant (Loxodonta africana), male, Ngorongoro Conservation Area, Tanzania, East Africa, Africa

Lion (Panthera leo) cubs about four weeks old, Ngorongoro Conservation Area, Tanzania, East Africa, Africa

Aerial view of High Force and River Tees in autumn, North Pennines AONB (Area of Outstanding Natural Beauty), Middleton-in-Teesdale, Teesdale, County Durham, England, United Kingdom, Europe

High Force and River Tees framed by autumn leaves, North Pennines AONB (Area of Outstanding Natural Beauty), Middleton-in-Teesdale, Teesdale, County Durham, England, United Kingdom, Europe

Sign protected area (Zone de Reserva), Cies Islands, Atlantic Islands Galicia Maritime Terrestrial National Park, Galicia, Spain, Europe

Olive tree in semi desert area near Rodalquilar, Cabo de Gata natural park, Almeria, Andalusia, Spain, Europe

Plants in rockery area Kew Gardens, Royal Botanic Gardens, UNESCO World Heritage Site, Kew, London, England, United Kingdom, Europe

Henri's Field growing area, Schumacher College, Dartington Hall estate, Totnes, Devon, England, United Kingdom, Europe

Cheetah (Acinonyx jubatus) with a baby blue wildebeest (Connochaetes taurinus), Ngorongoro Conservation Area, Tanzania, East Africa, Africa

Liana and vine shrouded dipterocarp tree in primary rainforest in the Maliau Basin Conservation Area, Sabah, Borneo, Malaysia, Southeast Asia, Asia

Spectacular limestone outcrops and forested valleys of Zhangjiajie Forest Park in the Wulingyuan Scenic Area, Hunan Province, China

Mist rises from primary rainforest at dawn, Maliau Basin Conservation Area, Sabah, Borneo, Malaysia, Southeast Asia, Asia

African Elephant (Loxodonta africana), male mud bathing, Ngorongoro Conservation Area, Tanzania, East Africa, Africa

Energy efficient CIEMAT building research at Solar energy research establishment near Tabernas, Almeria, Andalusia, Spain, Europe

Tall dipterocarp trees in primary rainforest in the Maliau Basin Conservation Area, Sabah, Borneo, Malaysia, Southeast Asia, Asia

Rainforest in Tully Gorge National Park, part of the Wet Tropics World Heritage Area, UNESCO World Heritage Site, near Ravenshoe, Queensland, Australia, Pacific

Spectacular limestone outcrops, forests and waterfalls of Zhangjiajie Forest Park in the Wulingyuan Scenic Area, Hunan Province, China

Geothermal volcanic area in the Wai-O-Tapu Thermal Wonderland, Waiotapu, North Island, New Zealand, Pacific

Boiling mud pool, Namafjall geothermal area, near Lake Myvatn, northeast area, Iceland, Polar Regions

Black grouse (Tetrao tetrix), displaying at Lek, Upper Teesdale, North Pennines Area of Outstanding Natural Beauty, County Durham, England, United Kingdom, Europe

Misty morning on Hoe Lake, Boundary Waters Canoe Area Wilderness, Superior National Forest, Minnesota, United States of America, North America

Canoeing on Hoe Lake, Boundary Waters Canoe Area Wilderness, Superior National Forest, Minnesota, United States of America, North America

Canoeing on the Louse River, Boundary Waters Canoe Area Wilderness, Superior National Forest, Minnesota, United States of America, North America

A skier carves a long turn on a classic off piste run at the big French resort of Meribel in the Three Valleys, the world's largest complete skiing area, western French Alps, France, Europe

Pregnant female southern elephant seal (Mirounga leonina) giving birth on the beach in Stromness Bay, South Georgia Island

Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America

Southern elephant seal (Mirounga leonina) pup, called weaners once their mothers stop nursing them, South Georgia Island, Southern Ocean

Greenland Lake reduced to a mud hole, Grand Canyon North Rim, UNESCO, Arizona, United States of America