Waterfalls swollen by summer snowmelt at the Upper and Lower Yosemite Falls, in the Yosemite National Park, California, USA

The fast-flowing Tokumm Creek swollen by summer snowmelt, Marble Canyon, Kootenay National Park, UNESCO World Heritage Site, British Columbia (B.C.), Canada, North America

The Australian boab tree (Adansonia gregorii), Camden Harbour, Kimberley, Western Australia, Australia, Pacific

The Australian boab tree (Adansonia gregorii), Camden Harbour, Kimberley, Western Australia, Australia, Pacific

The Australian boab tree (Adansonia gregorii), Camden Harbour, Kimberley, Western Australia, Australia, Pacific

The Merced River swollen by summer snowmelt, with the Yosemite Falls in the background, in the Yosemite National Park, UNESCO World Heritage Site, California, United States of America, North America

Bound feet, Lanzhou, China, Asia

Tourist's hands with mosquito bites, Namibia, Africa

Upper and Lower Yosemite Falls, swollen by summer snowmelt, Yosemite National Park, UNESCO World Heritage Site, California, United States of America

Hugely swollen River Parrett overflowing onto Aller Moor near Staithe after weeks of heavy rain, Somerset Levels, Somerset, England, United Kingdom, Europe

Hikers crossing a swollen river, Brecon Beacons National Park, South Wales, United Kingdom, Europe

Magnificent Frigatebird (Fregata magnificens), male with bloated, swollen mating breast, Insel Seymour, Galapagos Inseln, Galapagos Islands, Ecuador, South America

Tajik men lead donkeys laden with equipment across a river swollen with spring rains, as a team heads into the Band-e Baba range to conduct a wildlife survey, Kushk-i Kuhna District, Herat Province, Afghanistan

Hawaii, Lanai, Waterfall surrounded by impatiens

Toad singing on bank, La Ruvubu NP Burundi

Great frigatebird (Fregata minor) male displaying, Isla Genovesa, Galapagos Islands

Great frigatebird (Fregata minor) males displaying, Isla Genovesa, Galapagos Islands

Great frigatebird (Fregata minor) male displaying, Isla Genovesa, Galapagos Islands

Portrait of Magnificent frigatebird (Fregata magnificens). Galapagos Islands. Birds. Ecuador.

Magnificent frigatebird (Fregata magnificens) is sitting on bush branches. Galapagos Islands. Birds. Ecuador.

Male Lowland frog swimming in a pond, France

Portrait of male Lowland frog in a pond, France

Magnificent frigatebird (Fregata magnificens) is sitting on a nest. Galapagos Islands. Birds. Ecuador.

Magnificent frigatebird (Fregata magnificens) is sitting on a nest. Galapagos Islands. Birds. Ecuador.

Woman inflating a freestanding pool in a garden, summer, Pas de Calais, France