Wikipedia:Picture of the day/Archive
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These featured pictures, as scheduled below, appeared as the picture of the day (POTD) on the English Wikipedia's Main Page in the last 30 days.
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December 4
The cinnamon teal (Spatula cyanoptera) is a species of dabbling duck found in western North and South America. It is a migratory species, travelling to northern South America and the Caribbean during the Northern Hemisphere's winter. The cinnamon teal lives in marshes and ponds, and feeds mostly on plants. It has a typical length of 16 in (41 cm), with a wing span of 22 inch (56 cm) and a mass of 14 oz (400 g). The male has bright reddish plumage with a duller brown coloration on the female. The bird feeds predominantly by dabbling, with its main diet being plants and sometimes molluscs and aquatic insects. This cinnamon teal was photographed at the Parrot World animal park in Crécy-la-Chapelle, France. Photograph credit: Clément Bardot
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December 3
The mangosteen (Garcinia mangostana) is a tropical evergreen tree with edible fruit native to Maritime Southeast Asia, from the Malay Peninsula to Borneo. It is grown mainly in Southeast Asia, southwest India, and other tropical areas such as Colombia, Puerto Rico and Florida, where the tree has been introduced. The fruit is sweet and tangy, juicy, somewhat fibrous, with fluid-filled vesicles (like the flesh of citrus fruits), with an inedible, deep reddish-purple colored rind (exocarp) when ripe. In each fruit, the fragrant edible white flesh that surrounds each seed is the endocarp, the inner layer of the ovary, and is roughly the same shape and size as a tangerine, about 4 to 6 centimetres (1.5 to 2.5 inches) in diameter. This photograph, which was focus-stacked from 22 individual images, shows two mangosteens, one whole, and the other halved to expose the endocarp. Photograph credit: Ivar Leidus
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December 2
The Book of Fixed Stars (Arabic: كتاب صور الكواكب kitāb suwar al-kawākib, literally The Book of the Shapes of Stars) is an astronomical text written by Abd al-Rahman al-Sufi (Azophi) around 964. Following the Graeco-Arabic translation movement in the 9th century AD, the book was written in Arabic, the common language for scholars across the vast Islamic territories, although the author himself was Persian. It was an attempt to create a synthesis of the comprehensive star catalogue in Ptolemy's Almagest (books VII and VIII) with the indigenous Arabic astronomical traditions on the constellations (notably the Arabic constellation system of the Anwā'). The original manuscript no longer survives as an autograph, however, the Book of Stars has survived in later-made copies. This image from the book shows the constellation of Orion, in mirror image as if on a celestial globe, and is from a copy in the Bodleian Library dated to the 12th century AD. Ilustration credit: Abd al-Rahman al-Sufi
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December 1
The African helmeted turtle (Pelomedusa subrufa) is a species of side-necked terrapin in the family Pelomedusidae. The species naturally occurs in fresh and stagnant water bodies throughout much of sub-Saharan Africa, and in southern Yemen. It is omnivorous, with its diet consisting mainly of aquatic invertebrates, small fish, and vegetation. It is typically a small turtle, with most individuals being less than 20 centimetres (7.9 inches) in straight carapace length. The female lays two to ten eggs on average, normally during late spring and early summer. The eggs are placed in a flask-shaped nest about 4 to 7 inches (10 to 18 centimetres) deep and hatch in 75 to 90 days. This African helmeted turtle was photographed in Phinda Private Game Reserve, South Africa. Photograph credit: Charles J. Sharp
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November 30
Winston Churchill (30 November 1874 – 24 January 1965) was a British statesman, soldier and writer who served as Prime Minister of the United Kingdom from 1940 to 1945, during the Second World War, and again from 1951 to 1955. Apart from 1922 to 1924, he was a member of Parliament from 1900 to 1964, representing five different constituencies. This black-and-white photograph of Churchill, titled The Roaring Lion, was taken on 30 December 1941 by the Armenian-Canadian photographer Yousuf Karsh in the Centre Block on Parliament Hill in Ottawa, Canada. The photograph is particularly noted for Churchill's posture and facial expression, which have been compared to the wartime feelings that prevailed in the United Kingdom – persistence in the face of an all-conquering enemy. Photograph credit: Yousuf Karsh
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November 29
The Rose of Persia; or, The Story-Teller and the Slave, is a two-act comic opera, with music by Arthur Sullivan and a libretto by Basil Hood. It premiered at the Savoy Theatre on 29 November 1899, closing on 28 June 1900 after a profitable run of 211 performances. The opera then toured, had a brief run in America and played elsewhere throughout the English-speaking world. Painting credit: Dudley Hardy; restored by Adam Cuerden
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November 28
The ocellated turkey (Meleagris ocellata) is a species of turkey residing primarily in the Yucatán Peninsula, Mexico, as well as in parts of Belize and Guatemala. It is a relative of the North American wild turkey (Meleagris gallopavo), although it is somewhat smaller. The body feathers of both sexes are a mixture of bronze and green iridescent color, with neither sex possessing the beard typically found in wild turkeys. Tail feathers of both sexes are bluish-grey with an eye-shaped, blue-bronze spot near the end with a bright gold tip. These spots, or ocelli (for which the ocellated turkey is named), have been likened to the patterning typically found on peafowl. This ocellated turkey was photographed near Tikal in the Petén region of Guatemala. Photograph credit: Charles J. Sharp
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November 27
Mary Jackson (1921–2005) was an American mathematician and aerospace engineer at the National Advisory Committee for Aeronautics and its successor, NASA. She worked at Langley Research Center in Hampton, Virginia, for most of her career. She started as a computer at the segregated West Area Computing division in 1951. In 1958, after taking engineering classes, she became NASA's first black female engineer. Jackson had earned the most senior engineering title available by 1979 and realized she could not earn further promotions without becoming a supervisor. She accepted a demotion to become a manager of both NASA's federal women's program and the affirmative action program. Her work sought to influence the career paths of women in science, engineering, and mathematics positions at NASA. Jackson is one of the leading characters in the 2016 book Hidden Figures and one of the three protagonists in the book's film adaptation, released the same year. This NASA photograph of Jackson was taken in 1979. Photograph credit: NASA; restored by Adam Cuerden
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November 26
Ice eggs, also known as ice balls, are a rare phenomenon caused by a process in which small pieces of sea ice in open water are rolled over by wind and currents in freezing conditions and grow into spheroid pieces of ice. They sometimes collect into heaps of balls on beaches where they pack together in striking patterns. The gentle churn of water, blown by a suitably stiff breeze, makes concentric layers of ice form on a seed particle that then grows into the floating ball as it rolls through the freezing currents. This formation of ice eggs was photographed in 2014 on Stroomi Beach in Tallinn, Estonia. The temperature was around −20 to −15 °C (−4 to 5 °F), and the diameter of each ball around 5 to 10 centimetres (2 to 4 in). Photograph credit: Aleksandr Abrosimov
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November 25
Thecacera pennigera, also known as the winged thecacera, is a species of sea slug in the family Polyceridae. It has a cosmopolitan distribution, being found in temperate waters on either side of the North Atlantic Ocean, in the Mediterranean Sea, around South and West Africa, Brazil, Japan, Korea, Pakistan and more recently in Australia and New Zealand. There is a significant difference in colouring between Atlantic populations and Pacific specimens, however. Thecacera pennigera has a typical adult length between 15 millimetres (0.6 in) and 30 millimetres (1.2 in), featuring a short, wide head with two lateral flaps and two sheathed olfactory organs called rhinophores. The body is wedge shaped, being wide at the front and ending in a slender foot with a lateral keel on either side. The general colour of the body is translucent white and the upper side is covered with orange splotches and small black spots. Like other sea slugs, T. pennigera is a hermaphrodite with internal fertilisation and a mating mechanism whereby pairs of animals exchange packets of sperm. This T. pennigera was photographed in the Mar Piccolo of Taranto, Italy. Photograph credit: Roberto Strafella
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November 24
The Double Asteroid Redirection Test (DART) was a NASA space mission aimed at testing a method of planetary defense against near-Earth objects. The target object, Dimorphos, is a 160-meter-long (525-foot) minor-planet moon of the asteroid Didymos. DART was launched on 24 November 2021 and successfully collided with Dimorphos on 26 September 2022 while about 11 million kilometers (6.8 million miles) from Earth. The collision shortened Dimorphos's orbit by 32 minutes and was mostly achieved by the momentum transfer associated with the recoil of the ejected debris, which was larger than the impact. This video is a timelapse of DART's final five and a half minutes before impacting Dimorphos, and was compiled from photographs captured by the Didymos Reconnaissance and Asteroid Camera for Optical navigation (DRACO), the spacecraft's 20-centimeter-aperture (7.9-inch) camera, and transmitted to Earth in real time. The replay is ten times faster than reality, except for the last six images, which are shown at the same rate at which the spacecraft returned them. Both Didymos and Dimorphos are visible at the start of the video, and the final frame shows a patch of Dimorphos's surface 16 meters (51 feet) across. DART's impact occurred during transmission of the final image, resulting in a partial frame. Video credit: NASA / Johns Hopkins APL
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November 23
The Finding in the Temple, also called Christ among the Doctors, the Disputation in the Temple and variations of those names, is an episode in the early life of Jesus depicted in chapter 2 of the Gospel of Luke. It is the only event of the later childhood of Jesus mentioned in a canonical gospel. In the episode, Jesus – at the age of twelve – accompanies Mary, Joseph, and a large group of their relatives and friends to Jerusalem on many pilgrimages. On the day of their return, Jesus remained in the Temple. Mary and Joseph returned home believing he was among their group when he was not. After a day of travel they realised Jesus was missing and returned to Jerusalem, finding him three days later. He was found in the Temple in discussion with the elders, "listening to them and asking them questions". When admonished by Mary, Jesus replied: "How is it that you sought me? Did you not know that I must be in my Father's house?" The Finding in the Temple is frequently shown in art. This representation, titled The Finding of the Saviour in the Temple, is an oil-on-canvas painting produced by William Holman Hunt in 1860. It now hangs in the Birmingham Museum and Art Gallery in Birmingham, England. Painting credit: William Holman Hunt
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November 22
Wait for Me, Daddy is a photograph taken by Claude P. Dettloff of the British Columbia newspaper The Province. It depicts a column of Canadian Army soldiers of the British Columbia Regiment (Duke of Connaught's Own) marching in New Westminster on October 1, 1940. In the foreground, five-year-old Warren "Whitey" Bernard runs out of his mother's reach towards his father, Private Jack Bernard. The photograph received extensive exposure worldwide, and was used in Canadian war-bond drives. Photograph credit: Claude P. Dettloff; restored by Yann Forget
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November 21
The red-lored whistler (Pachycephala rufogularis) is one of nine species of whistler occurring in Australia and a member of the family Pachycephalidae. It resides in the low mallee, spinifex, cypress pine and broombush woodland in the desert of central New South Wales, north-western Victoria and adjacent south-eastern South Australia, preferring low mallee woodlands or shrublands with open canopy, above a moderately dense but patchy scrub layer. The male bird has an orange or buff face and throat, a grey breastband extending around the neck and over the head, and rufous underparts with pale yellow or olive edging to primaries. The female is similar but with a paler throat and underparts. While it is often seen perched in trees and shrubs, the red-lored whistler feeds, for the most part, on the ground. Little is known about the movement of this species, although it is thought to be sedentary, with some movement possibly after breeding. It builds a substantial, cup-shaped nest made mostly of coarse bark and mallee leaves, neatly woven around the rim in low shrubs and lays two or three eggs. The species's limited range has seen it listed nationally as a vulnerable species. This red-lored whistler was photographed in the Nombinnie Nature Reserve in New South Wales. Photograph credit: John Harrison
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November 20
Machado de Assis (1839–1908) was a Brazilian novelist, poet, playwright and short-story writer, widely regarded as the greatest writer of Brazilian literature. In 1897, he founded and became the first president of the Brazilian Academy of Letters. He was multilingual, having taught himself French, English, German and Greek later in life. Machado's work shaped the realist movement in Brazil and the birth of the Brazilian republic made Machado become more critical and an observer of the Brazilian society of his time. Generally considered to be Machado's greatest works are Dom Casmurro (1899), Memórias Póstumas de Brás Cubas (Posthumous Memoirs of Brás Cubas, also translated as Epitaph of a Small Winner) and Quincas Borba (also known in English as Philosopher or Dog?). In 1893, he published "A Missa do Galo" ("Midnight Mass"), often considered to be the greatest short story in Brazilian literature. This photograph of Machado was taken by the Brazilian photographer Marc Ferrez in 1890. Photograph credit: Marc Ferrez; restored by Adam Cuerden
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November 19
Fomitopsis quercina is a species of mushroom in the order Polyporales. Commonly known as the oak mazegill, among other names, its specific epithet refers to the oak genus Quercus, upon which it frequently grows, causing a brown rot. It is found in most of Europe, following the pattern of oak distribution, and has also been reported in northern Africa, North America, Asia and Australia. The mushroom features pores which form a maze-like appearance. Though inedible, it can be used as a natural comb and has been the subject of chemical research. This F. quercina mushroom was photographed growing on a tree branch at De Famberhorst, a nature reserve in the town of Joure in Friesland, Netherlands. The photograph was focus-stacked from 21 separate images. Photograph credit: Dominicus Johannes Bergsma
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November 18
The Apennine Colossus is a stone statue, approximately 11 metres (36 feet) tall, in the estate of Villa Demidoff (originally Villa di Pratolino) in Vaglia in Tuscany, Italy. A personification of the Apennine Mountains, the colossal figure was created by Giambologna, a Flemish-born Italian sculptor, in the late 1580s. The statue has the appearance of an elderly man crouched at the shore of a lake, squeezing the head of a sea monster through whose open mouth water originally emanated into the pond in front of the statue. The colossus is depicted naked, with stalactites in the thick beard and long hair to show the metamorphosis of man and mountain, blending his body with the surrounding nature. It is made of stone and plaster and the interior houses a series of chambers and caves on three levels. Initially, the back of the statue was protected by a structure resembling a cave, which was demolished around 1690 by the sculptor Giovanni Battista Foggini, who built a statue of a dragon to adorn the back of the colossus. The Italian sculptor Rinaldo Barbetti renovated the statue in 1876. Sculpture credit: Giambologna; photographed by Rhododendrites
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November 17
The European bison (Bison bonasus), also known as the wisent, is a mammal in the family Bovidae. It is one of two extant species of bison. Having been hunted to extinction in the wild by the early 20th century, the European bison was reintroduced to the wild in various European countries by the 2010s, following captive breeding programmes. It is the heaviest wild land animal in Europe, and individuals in the past may have been even larger than their modern-day descendants. The largest bulls of the species have a mass of up to 1,000 kilograms (2,200 lb). The European bison is a herd animal, which lives in both mixed and solely male groups. Mixed groups consist of adult females, calves, young aged two to three years, and young adult bulls. A typical herd numbers around eight to thirteen animals on average. This male European bison was photographed in the Białowieża Forest, Poland. Photograph credit: Charles J. Sharp
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November 16
Artemis I was an uncrewed Moon-orbiting mission that was launched on November 16, 2022. It was the first major spaceflight of NASA's Artemis program and marked the agency's return to lunar exploration since the Apollo program after five decades. It was the first flight test of the Orion spacecraft and the Space Launch System (SLS) rocket, and the mission's main objective was to test the Orion spacecraft in preparation for future Artemis missions. Artemis I was launched from Launch Complex 39B at the Kennedy Space Center. After reaching orbit, the upper stage separated and performed a trans-lunar injection before releasing Orion and ten CubeSat satellites. Orion completed one flyby of the Moon on November 21 and completed a second flyby on December 5. This picture shows Artemis I launching from Launch Complex 39B. Photograph credit: NASA/Joel Kowsky
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November 15
Sherman's March to the Sea was a military campaign of the American Civil War conducted through Georgia by Major General William Tecumseh Sherman of the Union army. The campaign began on November 15, 1864, with Sherman's troops leaving Atlanta, recently taken by Union forces, and ended with the capture of the port of Savannah on December 21. His forces followed a "scorched earth" policy, destroying military targets as well as industry, infrastructure, and civilian property, disrupting the Confederacy's economy and transportation networks. The operation debilitated the Confederacy and helped lead to its eventual surrender. This picture shows an engraving by Alexander Hay Ritchie depicting Sherman's March to the Sea. Engraving. credit: Alexander Hay Ritchie; restored by Adam Cuerden
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November 14
Percy Grainger (1882–1961) was an Australian-born composer, arranger and pianist who played a prominent role in the revival of interest in British folk music in the early 20th century. Grainger left Australia in 1895 to study at the Hoch Conservatory in Frankfurt. Between 1901 and 1914 he was based in London, where he established himself first as a society pianist and later as a concert performer, composer and collector of original folk melodies. He met many of the significant figures in European music, forming friendships with Frederick Delius and Edvard Grieg, and became a champion of Nordic music and culture. In 1914, Grainger moved to the United States, where he took citizenship in 1918. He experimented with music machines that he hoped would supersede human interpretation. Although much of his work was experimental and unusual, the piece with which he is most generally associated is his piano arrangement of the folk-dance tune "Country Gardens". This glass negative of Grainger was taken at some point around 1915–1920. Photograph credit: Bain News Service; restored by Adam Cuerden and MyCatIsAChonk
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November 13
The Réunion stonechat (Saxicola tectes) is a species of stonechat in the family Muscicapidae, the Old World flycatchers. It is found across the French Indian Ocean island of Réunion in forests, shrublands, and artificial environments such as gardens and plantations. The Réunion stonechat is a member of the common stonechat superspecies, but it is distinct, together with its closest relative the Madagascar stonechat, from the rest of that group being insular derivatives of the African stonechat. The male is black above and white below, with a white supercilium (sometimes absent), half-collar, covert patch, and a variable-sized orange patch on the breast. Females differ from males in being browner above, more buff-toned below, and often lacking the white greater covert patch. This male Réunion stonechat was photographed in La Roche Écrite, south of the Réunion capital Saint-Denis. Photograph credit: Charles J. Sharp
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November 12
Contemporary climate change involves rising global temperatures and significant shifts in Earth's weather patterns. Climate change is driven by emissions of heat-trapping greenhouse gases such as carbon dioxide and methane. Emissions come mostly from burning fossil fuels (coal, oil and natural gas), and also from agriculture, forest loss, cement production and steel making. Climate change causes sea level rise, glacial retreat and desertification, and intensifies heat waves, wildfires and tropical cyclones. These effects of climate change endanger food security, freshwater access and global health. Climate change can be limited by using low-carbon energy sources such as wind and solar energy, by forestation, and shifts in agriculture. Adaptations such as coastline protection cannot by themselves avert the risk of severe, pervasive and irreversible impacts. Limiting global warming in line with the goals of the 2015 Paris Agreement requires reaching net-zero emissions by 2050. This animation, produced by NASA's Scientific Visualization Studio with data from the Goddard Institute for Space Studies, shows global surface temperature anomalies from 1880 to 2023 on a world map, illustrating the rise in global temperatures. Normal temperatures (calculated over the 30-year baseline period 1951–1980) are shown in white, higher-than-normal temperatures in red, and lower-than-normal temperatures in blue. The data are averaged over a running 24-month window. Video credit: NASA; visualized by Mark SubbaRao
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November 11
Shirley Graham Du Bois (November 11, 1896 – March 27, 1977) was an American-Ghanaian writer, playwright, composer, and activist for African-American causes. Born in Indianapolis to an Episcopal minister, she moved with her family throughout the United States as a child. After marrying her first husband, she moved to Paris to study music at the Sorbonne. After her divorce and return to the United States, Graham Du Bois took positions at Howard University and Morgan College before completing her BA and master's at Oberlin College in Ohio. Her first major work was the opera Tom-Tom, which premiered in Cleveland in 1932. She married W. E. B. Du Bois in 1951, and the couple later lived in Ghana, Tanzania and China. She won several prizes, including an Anisfield-Wolf Book Award for her 1949 biography of Benjamin Banneker. This photograph of Graham Du Bois was taken by Carl Van Vechten in 1946. Photograph credit: Carl Van Vechten; restored by Adam Cuerden
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November 10
The European spruce bark beetle (Ips typographus), is a species of bark beetle in the true weevil family, Curculionidae. It is found in Europe and Asia Minor and east to China, Japan, North Korea and South Korea. Bark beetles are so named because they reproduce in the inner bark, living and dead phloem tissues, of trees. Their preferred trees in which to reside include spruces, firs, pines and larches. The species has the ability to spread quickly over large areas and some scientists hypothesize that long-distance movements originating from the Iberian Peninsula may have contributed to its invasion of northern Norway spruce forests. This female European spruce bark beetle was photographed in Naninne in the province of Namur, Belgium. Photograph credit: Ivar Leidus
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November 9
Pyromorphite is a mineral species composed of lead chlorophosphate: Pb5(PO4)3Cl, sometimes occurring in sufficient abundance to be mined as an ore of lead. First distinguished chemically by Martin Heinrich Klaproth in 1784, it was named pyromorphite by Johann Friedrich Ludwig Hausmann in 1813. It is usually green, yellow or brown in color, with a resinous lustre. Crystals are common and have the form of a hexagonal prism terminated by the basal planes, sometimes combined with narrow faces of a hexagonal pyramid. Other forms include crystals with a barrel-like curvature and globular or reniform masses. Pyromorphite is part of the apatite group of minerals and bears a close resemblance physically and chemically with two other minerals, mimetite and vanadinite. This focus-stacked photograph, merged from 26 separate images, shows a sample of pyromorphite extracted from the Resuperferolitica Mine in Santa Eufemia, in the Spanish province of Córdoba. The sample measures 3.5 cm × 3.0 cm × 1.5 cm (1.38 in × 1.18 in × 0.59 in). Photograph credit: Ivar Leidus
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November 8
John Tarleton (8 November 1811 – 25 September 1880) was a Royal Navy officer who went on to be Second Naval Lord. He was given command of the fifth-rate HMS Fox in 1852, of the frigate HMS Eurydice in 1855 and of the frigate HMS Euryalus in 1858: he led the latter ship as an element of the Channel Squadron and then of the Mediterranean Squadron. Tarleton served as Junior Naval Lord from 1871 and then as Second Naval Lord from 1872 to 1874. He was promoted to Vice Admiral in 1875 and retired in 1879. He is seen here in an 1860 photograph by John Jabez Edwin Mayall. Photograph credit: John Jabez Edwin Mayall; restored by User:Adam Cuerden
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November 7
The Dalmatian pelican (Pelecanus crispus) is a bird in the family Pelecanidae. With a length of 160 to 183 centimetres (63 to 72 inches), a mass of 7.25 to 15 kilograms (16.0 to 33.1 pounds) and a wingspan of 245 to 351 centimetres (96 to 138 inches), it is the largest pelican species and one of the world's largest living flying birds. The Dalmatian pelican has a range spanning across much of central Eurasia, from the Mediterranean in the west to the Taiwan Strait in the east, and from the Persian Gulf in the south to Siberia in the north. It is a short-to-medium-distance migrant between breeding and overwintering areas. The Dalmatian pelican's preferred habitat is lakes, rivers, deltas and estuaries, and it feeds on various fish species such as the common carp and European perch. Like many pelicans, it is often silent, but can be vocal during the mating season, engaging in a wide range of guttural, deep vocalisations, including barks, hisses and grunts. This Dalmatian pelican was photographed in flight over the Danube Delta in Romania. Photograph credit: Charles J. Sharp
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November 6
Cecilia Payne-Gaposchkin (1900–1979) was a British-born American astronomer and astrophysicist who proposed in her 1925 doctoral thesis that stars were composed primarily of hydrogen and helium. Her groundbreaking conclusion was initially rejected because it contradicted the scientific wisdom of the time, which held that there were no significant elemental differences between the Sun and Earth. Independent observations eventually proved she was correct. Her work on the nature of variable stars was foundational to modern astrophysics. Photograph credit: Science Service; restored by Adam Cuerden
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November 5
The tentacled flathead (Papilloculiceps longiceps) is a species of marine fish belonging to the flathead family, Platycephalidae. It is found in the western Indian Ocean, including the Red Sea, and also in the Mediterranean Sea, probably as a result of migration through the Suez Canal. The tentacled flathead is a well camouflaged, ambush predator of fish and crustaceans, living near coral reefs on sand or rubble substrates at depths of up to 15 metres (49 feet). The species has an elongate body, with a maximum published length of 70 centimetres (28 inches), although 50 centimetres (20 inches) is more typical. It has a depressed head with five prominent nuchal spines, ridges on its operculum and preoperculum, a spine on the rear of the suborbital ridge, and smaller spines elsewhere. The body is mottled brownish or greenish dorsally, and whitish ventrally. There are three or four dark bands on the caudal fin, and the other fins are marked with large, dark blotches. This tentacled flathead was photographed in the Red Sea in Ras Muhammad National Park, off the southern coast of the Sinai Peninsula in Egypt. Photograph credit: Diego Delso
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