A team of obstetricians perform a Caesarean section (commonly called a "C-section") in a modern hospital. The image shows the very first moment the mother glimpses her new-born child. This is a surgical procedure in which incisions are made through a mother's abdomen (laparotomy) and uterus (hysterotomy) to deliver one or more babies. It is usually performed when a vaginal delivery would put the baby's or mother's life or health at risk, although in recent times it has been also performed upon request for childbirths that would otherwise have been natural.

Photo credit: Salim Fadhley
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A lunar transit of the sun captured during calibration of STEREO B's ultraviolet imaging cameras. A transit is the astronomical event that occurs when one celestial body appears to move across the face of another celestial body, as seen by an observer at some particular vantage point. In this video the Moon appears smaller than it does from Earth because the satellite's viewpoint is farther from the Moon than the Earth is.

Film credit: STEREO mission (NASA)
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An AV-8B Harrier II belonging to the United States Marine Corps attack squadron VMA-231 takes off during the 2003 EAA AirVenture Oshkosh. As the AV-8B is a V/STOL aircraft, it is capable of taking off both vertically as well as with a short runway.

Photo credit: Paul Maritz
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The three tallest skyscrapers in Canary Wharf, a large business and shopping development in the London Borough of Tower Hamlets (London, England), as viewed from Cabot Square: 8 Canada Square (centre-left), One Canada Square (centre), Citigroup Centre (centre-right).

Photo credit: David Iliff
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A hand-drawn 1943 United States Army map of world ocean currents and drift ice, as they were known at the time. An ocean current is continuous, directed movement of seawater, like rivers of hot or cold water within the ocean. They are generated from the forces acting upon the water like the Earth's rotation, the wind, the temperature, salinity differences and the gravitation of the moon.

Map credit: United States Army
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The Willie Wagtail (Rhipidura leucophrys) is a passerine bird native to Australia, New Guinea, the Solomon Islands, the Bismarck Archipelago, and eastern Indonesia. It is a common and familiar bird throughout much of its range, living in most habitats apart from thick forest.

Photo credit: Fir0002
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A series of photos showing the process of oviposition in an Ichneumon wasp, which lays its eggs inside or near the maggots or caterpillars of other insects, where they hatch and then eat their host from inside.

Photo credit: Richard Bartz
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An example of guttation, the appearance of drops of xylem sap on the tips or edges of leaves of some vascular plants, on an Equisetum. At night, transpiration usually does not occur because most plants have their stomata closed. When there is a high soil moisture level, water will enter plant roots, because the water potential of the roots is lower than in the soil solution. The water will accumulate in the plant creating a slight root pressure. The root pressure forces some water to exude through special leaf tip or edge structures, hydathodes, forming drops. Guttation is not to be confused with dew, which condenses from the atmosphere onto the plant surface.

Photo credit: Luc Viatour
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Chamaeleo jacksonii, commonly known as Jackson's Chameleon or the Three-horned Chameleon, is an African chameleon. Native to the humid, cooler regions of Kenya and Tanzania, this specimen is from a feral population established in Hawaii in the 1970s. Males possess three brown horns, but females usually have none or just traces of the rostral horn (on the nose).

Photo credit: Rich Torres
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