A portrait of a snow leopard (Panthera uncia) at the Rheintal Zoo in Germany. This species of big cat in the genusPanthera is native to the mountain ranges of Central and South Asia. The snow leopard's adaptations for life in a cold, mountainous environment include a stocky body, thick fur, small rounded ears to minimize heat loss, and a short muzzle with unusually large nasal cavities that help the animal breathe the cold, thin air.Photograph: Tambako The Jaguar
The tile work on the facade of the shrine dates back to the reign of Suleiman the Magnificent (1520 to 1566) and took seven years to install. Many of the tiles were replaced during a restoration project which began in 1955, as the originals had been dislodged by rain.Photograph: Andrew Shiva
Fantasia, also known as lab el baroud ("the gunpowder play"), is a traditional exhibition of horsemanship in the Maghreb region of North Africa. A group of horse riders, all wearing traditional clothes, charge along a straight path at the same speed before firing into the sky using old muskets or muzzle-loading rifles at the end of the charge. It is considered to symbolize a strong relationship between the man and the horse.Photograph: Maxim Massalitin
Cover of the c. 1895 edition of the vocal score to The Mikado. First performed in London in 1885, The Mikado is the ninth of fourteen comic opera collaborations between the composer Arthur Sullivan and the dramatist W. S. Gilbert. Gilbert was able to satirise British politics and institutions freely by setting the opera in a fictionalised Japan. The story: After a cheap tailor is appointed Lord High Executioner of Titipu, he tries to save the town by pretending to execute the disguised son of the Mikado (the Emperor of Japan) for the capital offence of flirting; this scheme backfires. The Mikado's original run at the Savoy Theatre was 672 performances, nearly a record at the time. It remains one of the most frequently performed musical theatre pieces in history, with regular professional and amateur revivals.Illustration: Unknown; restoration: Adam Cuerden
The Palm House, built in the University of Helsinki Botanical Garden in 1889 to house tropical plants. It has since been refurbished several times, most recently between 1996 and 1998. The greenhouse is home to more than 800 different species of plants, and the garden grounds to more than 2,800 plants of different origins.Photograph: Alvesgaspar
A five-member team playing speedball, a variant of paintball in which teams are given an equal playing field through the use of bunkers (such as the inflatable Sup'Air seen here). Teams are placed on a small, open field, and must act cooperatively and aggressively to reach the goal.Photograph: Stefan Krause
A caterpillar of Lymantria dispar dispar, also known as the gypsy moth. First described by Carl Linnaeus in 1758, the gypsy moth is found throughout Eurasia, where it is considered a pest. The larvae emerge from egg masses in the spring, and then are dispersed by the wind and begin feeding on leaves. They are initially diurnal, but become nocturnal after their fourth molting.Photograph: Didier Descouens
The Railway is an oil painting on canvas completed by Édouard Manet in 1873. It depicts a young woman, modeled by Victorine Meurent, in front of an iron fence near the Gare Saint-Lazare in Paris. Beside this pensive woman is a young girl, standing at the fence and watching through the railings as a train – identified only by its steam – passes beneath them.
The Moore–Choctaw tornado, which killed two people, was initially rated an EF3, indicating significant damage to well-built structures. It was upgraded to an EF4 – capable of leveling even the most robustly built homes – after leveled homes were found in subdivisions that were difficult to access due to damage.Photograph: Win Henderson, FEMA
A male red-capped plover (Charadrius ruficapillus) in breeding plumage, photographed at Ralph's Bay in Tasmania, Australia. These birds are seasonal breeders along the coast, but inland they will breed in response to unpredictable rains. The nests are found on the ground, in vicinity of wetlands, and may hold a clutch of two eggs.Photograph: JJ Harrison
Silver Horn (1860–1940) was a Kiowaledger artist and chief from Oklahoma. The son of a calendar keeper and grand-nephew of the tribe's Principal Chief Dohasan, Silver Horn was chosen to succeed his father as calendar keeper. Working with a variety of mediums and materials, he completed thousands of illustrations and other artworks depicting Kiowa culture, including dances, myths, and warfare.Painting: Elbridge Ayer Burbank
A British recruitment poster from the First World War, featuring imagery of Saint George and the Dragon. Britain in the First World War fielded more than five million troops. Enrollment was initially voluntary, and in 1914 and 1915 the British military released numerous recruitment posters to attract troops. As the war progressed there were fewer volunteers to fill the ranks, and in 1916 the Military Service Act, which provided for the conscription of single men aged 18–41, was introduced. By the end of the war the law's scope had been extended to include older and married men.Poster: Parliamentary Recruiting Committee; restoration: Adam Cuerden
Side view of Papilio demoleus, a species of swallowtail butterfly commonly found on citrus species. First described by Carl Linnaeus in 1758, this highly adaptable species is found throughout the world. P. demoleus is considered a pest owing to its habit of feeding on cultivated citrus species; caterpillars can completely defoliate young citrus trees (shorter than 2 feet (60 cm)) and devastate citrus nurseries.
Members of the Tanzanian Red Cross removing a victim of the 2013 Dar es Salaam building collapse from the rubble on 29 March. During this accident, in which a 16-storey residential tower collapsed onto a nearby mosque, more than sixty victims were caught inside the rubble; thirty-six, including five children, died. The cause of the accident was determined to be shoddy construction: poor materials were used, and the building was six stories taller than permitted.Photograph: Muhammad Mahdi Karim
Tule fog is a thick ground fog that settles in the San Joaquin Valley and Sacramento Valley areas of California's Great Central Valley during the state's rainy season. It forms when there is a high relative humidity (typically after a heavy rain), calm winds, and rapid cooling during the night, and is typically confined to the Great Central Valley region by the surrounding mountain ranges. Tule fog, a low cloud usually below 2,000 feet (610 m) in altitude, is highly immobile and can last for weeks if undisturbed. This fog is the leading cause of weather-related deaths in California.Photograph: Jeff Schmaltz/NASA