Yashpal Rathore / Composite image of Fireflies synchronize display just after first shower of monsoon, on moonless night. India.

Paul Williams / Budgerigars (Melopsittacus undulatus) flocking to find water, Northern Territory, Australia

Denis-Huot / Cheetah (Acinonyx jubatus) resting with rainbow behind it, Masai-Mara Game Reserve, Kenya. September.

Denis-Huot / African lion (Panthera leo) male shaking water off mane after rain, Masai-Mara Game Reserve, Kenya. September.

Denis-Huot / African elephant (Loxodonta africana) standing in the rain, Masai-Mara Game Reserve, Kenya. March.

Denis-Huot / Group of male African lions (Panthera leo) resting with storm clouds overhead, Masai-Mara Game Reserve, Kenya. September.

Denis-Huot / Village weaver bird (Ploceus cucullatus) male building a nest after the rains, Masai-Mara Game Reserve, Kenya. February.

Luciano Candisani / Jacare Caiman (Caiman yacare) fishing in flooded plain, Pantanal, Brazil

Denis-Huot / Aerial view of Elephants (Loxodonta africana) at watering hole in the rainy season, Tsavo East National Park, Kenya.

Luciano Candisani / Clouds reflected in flooded field at the end of the wet season, Pantanal, Brazil

Luciano Candisani / Flooded fields, Pantanal, Brazil

Michel Roggo / Anavilhanas Archipelago in the Rio Negro, and flooded forest or 'Varzea forest' Amazonas, Brazil. February 2011

Bert Willaert / View from the top of the Ozarde waterfalls near Koyna Lake during the monsoon. Western Ghats, India, August 2010.

Jabruson / African rainforest transport penetration. Road and associated infrastructure development difficulties. The onset of the rainy season deteriorates dirt roads and vehicles get stuck in mud, Cameroon, Au...

Denis-Huot / Sossusvlei dunes, wind in rainy season, Namib-Naukluft National Park, Namib desert, Namibia, April 2008

Gavin Hellier / Looking up at the Empire State Building on a rainy evening, Manhattan, New York City, USA 2009. No release available.

Christophe Courteau / Local people moving on mokoros, traditional boats of the Okavango delta. Botswana.

Christophe Courteau / Red lechwe pair running & jumping in swamp {Kobus leche}. Khwai river, Moremi GR, Botswana

Christophe Courteau / Aerial view of Okavango Delta, Botswana, Southern-Africa. End of rainy season, April.

Graham Eaton / Dendritic drainage of the land at the end of the rainy season, a view from the air. Northern Kenya, Africa, November.

Konstantin Mikhailov / Lake Ann surrounded by Douglas firs (Pseudotsuga menziesii) Silver firs (Abies alba) and other conifers in the area of Rainy Pass of North Cascades National Park, North Cascades National Park, Cascade...

Christophe Courteau / 'Xamse', a young Kalahari bushman, drinking water from an ostrich's egg in the dry season, egg was buried underground during the rainy season, Kalahari Desert, Botswana, August 2008

Christophe Courteau / 'Xamse', a young Kalahari bushman, drinking water from an ostrich's egg in the dry season, egg was buried underground during the rainy season. Kalahari Desert, Botswana, August 2008

Christophe Courteau / Kalahari bushmen, family group preparing food in the bush, rainy season, Central Kalahari Desert, Botswana, March 2009

Christophe Courteau / Clouds during the rainy season in the Kalahari Desert, Botswana, March 2009

Michel Roggo / Rio Negro flooded during rainy season, Amazon, Brazil, 1993.

Michel Roggo / Looking down on Boat in flooded Amazon rainforest, Rio Negro during rainy season, Brazil 1994

David Woodfall / Young Bangladeshi with young brother in monsoon rain washing in pond, Ganges delta, Bangladesh, November 2008

David Woodfall / Man standing outside building in pouring rain, Ganges delta, Bangladesh, November 2008

David Woodfall / Young Bangladeshi child holding young brother in monsoon rain washing in pond, Ganges delta, Bangladesh, December 2008

Inaki Relanzon / Boy washing outdoors during rains, Inle Lake, Shan State, Myanmar, Burma. August 2009

Jouan & Rius / Waterfall during the rainy season, Rincon de la Vieja NP, Costa Rica

Jouan & Rius / Waterfall during the rainy season, Rincon de la Vieja NP, Costa Rica

Jouan & Rius / Cape ground squirrel (Xerus inauris) feeding on flowers during the rainy season, Kgalagadi Transfrontier Park, Kalahari desert, South Africa

Tui De Roy / Waved Albatross (Phoebastria irrorata) courtship dance under rainy season clouds, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador

Philippe Clement / Devil's thorn (Tribulus zeyheri) the Kalahari desert's prominent creeper, appearing after the rains, Kgalagadi NP, South Africa

Jabruson / Aerial view of rainforest canopy during rainy season. Epulu Ituri, Dem Rep Congo

Yva Momatiuk & John Eastcott / Burchell's Zebra (Equus burchellii) and Blue Wildebeest (Connochaetes taurinus) herds grazing together in open grassland during short rainy season in November, Masai Mara National Reserve, Kenya

Yva Momatiuk & John Eastcott / Burchell's Zebra (Equus burchellii) and Blue Wildebeest (Connochaetes taurinus) herds grazing together in open grassland during short rainy season in November, Masai Mara National Reserve, Kenya

Konrad Wothe / Flight safari, Okavango Delta, Botswana

Konrad Wothe / Safari airplane flying over the flooded Okavango Delta, Botswana

Tui De Roy / Volcan Alcedo Giant Tortoise (Chelonoidis nigra vandenburghi) wallowing in temporary rainy season pool, Alcedo Volcano, Isabella Island, Galapagos Islands, Ecuador

Jabruson / Aerial view of troical rainforest tree canopy during rainy season. Epulu Ituri rainforest reserve. Democratic Republic of Congo.

Jabruson / Aerial view of rainforest canopy during rainy season. Democratic Republic of Congo, Epulu Ituri rainforest reserve.

Jabruson / Red billed quelea flock flying to drink at river in Tsavo NP, Kenya, at end of rainy season.

Robert Valentic / Spotted forest skink (Sphenomorphus maculatus) Koh Chang, Thailand. Wet season.

David Pattyn / Rainforest landscape on a rainy and misty day, Guango river area, Papallacta cloud forest area, Ecuador, July

Eric Baccega / Abdim's stork (Ciconia abdimii) flock on migration arriving in South Luangwa National Park in november for rainy season, Zambia

Eric Baccega / Abdim's stork (Ciconia abdimii) flock on migration arriving in South Luangwa National Park in november for rainy season, Zambia

Sandesh Kadur / Indian rhinoceros (Rhinoceros unicornis) calf separated from mother during the monsoon floods, Kaziranga National Park, Assam, India

Jack Dykinga / Arizona poppies (Kallstroemia grandiflora) blooming amongst Mesquite (Prosopsis sp) trees with Santa Catalina mountains in background. Post summer monsoon rain, evening light. Sonoran Desert, Catalina...

Ashley Cooper / Dirt track to Phalombe below Mount Mulanje, Malawi, March 2015.

Ashley Cooper / Sign for Mount Mulanje in Malawi, March 2015.

Paul Williams / Mountain tree shrew (Tupaia montana) feeding on nectar secreted by the endemic Pitcher Plant (Nepenthes kinabaluensis) Montane forests (at 2200m-3000m), slopes of Mt Kinabalu. Kinabalu Park, Sabah, Bo...

Paul Williams / Mountain tree shrew (Tupaia montana) feeding on nectar secreted by the endemic Pitcher Plant (Nepenthes kinabaluensis) Montane forests (at 2200m-3000m), slopes of Mt Kinabalu. Kinabalu Park, Sabah, Bo...

Paul Williams / Filming a Mountain tree shrew (Tupaia montana) feeding on nectar secreted by the endemic Pitcher Plant (Nepenthes kinabaluensis) Montane forests (at 2200m-3000m), slopes of Mt Kinabalu. Kinabalu Park,...

Paul Williams / Mountain tree shrew (Tupaia montana) feeding on nectar secreted by the endemic Pitcher Plant (Nepenthes kinabaluensis) Montane forests (at 2200m-3000m), slopes of Mt Kinabalu. Kinabalu Park, Sabah, Bo...

Paul Williams / Mountain tree shrew (Tupaia montana) feeding on nectar secreted by the endemic Pitcher Plant (Nepenthes kinabaluensis) Montane forests (at 2200m-3000m), slopes of Mt Kinabalu. Kinabalu Park, Sabah, Bo...

Paul Williams / Mountain tree shrew (Tupaia montana) feeding on nectar secreted by the endemic Pitcher Plant (Nepenthes kinabaluensis) Montane forests (at 2200m-3000m), slopes of Mt Kinabalu. Kinabalu Park, Sabah, Bo...

Paul Williams / Mountain tree shrew (Tupaia montana) feeding on nectar secreted by the endemic Pitcher Plant (Nepenthes kinabaluensis) Montane forests (at 2200m-3000m), slopes of Mt Kinabalu. Kinabalu Park, Sabah, Bo...

Paul Williams / Celebes crested macaque / black macaque (Macaca nigra) large adult male yawning on beach, Tangkoko, Sulawesi, Indonesia.

Paul Williams / Celebes crested macaque / black macaque (Macaca nigra) two juveniles play together in a river. Tangkoko, Sulawesi, Indonesia. Small repro only

Paul Williams / Budgerigars (Melopsittacus undulatus), flocking to find water, Summer, Northern Territory, Australia

Paul Williams / Budgerigars (Melopsittacus undulatus), flocking to find water, Summer, Northern Territory, Australia

Paul Williams / Cameraman Lyndsey Cupper filming for the BBC series Wonders of the Monsoon with flock of Budgerigars (Melopsittacus undulatus) flocking to find water, Northern Territory, Australia.

Paul Williams / Budgerigars (Melopsittacus undulatus) flocking to find water, Northern Territory, Australia

Paul Williams / Cameraman Lyndsey Cupper filming for the BBC series Wonders of the Monsoon with flock of Budgerigars (Melopsittacus undulatus) flocking to find water, Northern Territory, Australia.

Paul Williams / Budgerigars (Melopsittacus undulatus) flocking to find water, Northern Territory, Australia

Paul Williams / Brown falcon (Falco berigora) feeding on a Budgerigar (Melopsittacus undulatus) with birds behind flocking to find water, Northern Territory, Australia

Paul Williams / Camera operator Richard Kirby filming on the summit of Mount Kinabalu, Borneo, May 2013.

Paul Williams / Double rainbow over a road in Western Australia, December 2013.

Paul Williams / Double rainbow over a Boab tree or Australian Baobab (Adansonia gregorii) Western Australia, December 2013.

Laurie Campbell / Reindeer (Rangifer tarandus) reindeer in rainy weather, reintroduced Cairngorm Reindeer Herd, Cairngorm National Park, Speyside, Scotland, November.

Denis-Huot / African elephant (Loxodonta africana) herd silhouetted in distance walking through a storm, Masai-Mara Game Reserve, Kenya. September.

Denis-Huot / African elephant (Loxodonta africana) mother and its newborn calf in the rain, Masai-Mara Game Reserve, Kenya. September.

Denis-Huot / African elephant (Loxodonta africana) female and its newborn calf trying to suckle in the rain, Masai-Mara Game Reserve, Kenya. September.

Denis-Huot / Baringo giraffe (Giraffa camelopardalis rothschildi) group standing in the rain and in the mist, Nakuru national park, Kenya. February.

Denis-Huot / Two cheetah cubs (Acinonyx jubatus) playing in the rain, Masai-Mara Game Reserve, Kenya. February.

Denis-Huot / Cheetah (Acinonyx jubatus) resting on a termite hill and storm brewing, Masai-Mara Game Reserve, Kenya. March.

Denis-Huot / Female waterbuck (Kobus ellipsiprymnus) in the rain, Masai-Mara Game Reserve, Kenya. February.

Denis-Huot / Newborn korrigum topi (Damaliscus lunatus korrigum) playing after the rains, Masai-Mara Game Reserve, Kenya. December.

Denis-Huot / Hippopotamus (Hippopotamus amphibius) calf on a riverbank with submerged adults in river during heavy rain, Masai-Mara Game Reserve, Kenya. April.

Denis-Huot / African lionesses (Panthera leo) walking in the savanna with storm in the distance, Masai-Mara Game Reserve, Kenya. March.

Denis-Huot / Young impalas (Aepyceros melampus) playing after rain, Masai-Mara Game Reserve, Kenya. January.

Denis-Huot / Red-billed francolin (Pternistis adspersus) standing in the rain, Masai-Mara Game Reserve, Kenya. March.

Denis-Huot / Termites (Isoptera) on a termite mound after the rain, Masai-Mara Game Reserve, Kenya. March.

Denis-Huot / Wildebeest (Connochaetes taurinus) herd walking in a line in the rain at sunset, Masai-Mara Game Reserve, Kenya. September.

Denis-Huot / Cheetah (Acinonyx jubatus) cub in the rain, Masai-Mara Game Reserve, Kenya. March.

Denis-Huot / Village weaver bird (Ploceus cucullatus) male building a nest after the rains, Masai-Mara Game Reserve, Kenya. February.

Denis-Huot / Wildebeest (Connochaetes taurinus) in distance grazing in the plains at sunset , Masai-Mara Game Reserve, Kenya. October.

Denis-Huot / Storm clouds moving across the plains, Masai-Mara Game Reserve, Kenya. August 2013.

Denis-Huot / Storm clouds and double rainbow above a herd of African buffalo (Syncerus caffer caffer), Masai-Mara Game Reserve, Kenya. September.

Denis-Huot / Rain clouds moving across the plains, Masai-Mara Game Reserve, Kenya. September 2013.

Denis-Huot / African buffalo (Syncerus caffer) grazing in the rain, Masai-Mara Game Reserve, Kenya. March.

Ingo Arndt / Tree roots and rock in dry Forest during rainy season, Santa Rosa National Park, Guanacaste, Costa Rica.

Philippe Clement / The remote Lagangarbh Hut along River Coupall in front of Buachaille Etive Mor in Glen Coe on a rainy day, Scottish Highlands, Scotland, UK, September 2016