• Julius Caesar (film by Burge [1970])

    Charlton Heston: …twice played Mark Antony, in Julius Caesar (1970) and in Antony and Cleopatra (1973), which he also directed.

  • Julius exclusus e coelis (work by Erasmus)

    Erasmus: The wandering scholar: …Erasmus’s anonymously published satiric dialogue, Julius exclusus e coelis (written 1513–14). In Venice Erasmus was welcomed at the celebrated printing house of Aldus Manutius, where Byzantine émigrés enriched the intellectual life of a numerous scholarly company. For the Aldine press Erasmus expanded his Adagia, or annotated collection of Greek and…

  • Julius I, Saint (pope)

    Saint Julius I ; feast day April 12) was the pope from 337 to 352. The papacy had been vacant four months when he was elected as St. Mark’s successor on Feb. 6, 337. Julius then became the chief support of orthodoxy and the Nicene Creed against Arianism, a heresy that held Christ to have been

  • Julius II (pope)

    Julius II was the pope, the leader of the Roman Catholic Church, from 1503 to 1513. The greatest art patron of the papal line, he was one of the most powerful rulers of his age. Although he led military efforts to prevent French domination of Italy, Julius is most important for his close friendship

  • Julius III (pope)

    Julius III was the pope from 1550 to 1555. As a cardinal, he served as co-president of the Council of Trent in 1545, with cardinals Cervini (later Pope Marcellus II) and Pole. Elected pope on Feb. 7, 1550, he realized that a reform of the church was urgent, and he appointed a commission that

  • Julius Rosenwald Fund (charitable endowment)

    Julius Rosenwald: In 1917 he established the Julius Rosenwald Fund (to be expended within 25 years after his death and liquidated in 1948), the chief purpose of which was the improvement of education for African American students. Augmented by local taxes and private gifts and working in partnership with Washington, the fund…

  • Julius von Tarent (work by Leisewitz)

    Johann Anton Leisewitz: …dramatist whose most important work, Julius von Tarent (1776), was the forerunner of Friedrich Schiller’s famous Sturm und Drang masterpiece Die Räuber (1781; The Robbers).

  • Julius, David (American physiologist)

    David Julius is an American physiologist known for his discovery of heat- and cold-sensing receptors in the nerve endings of the skin. His elucidation of a receptor known as TRPV1, along with his subsequent contributions to the discovery of additional temperature-sensitive receptor molecules, gave

  • Julius, David Jay (American physiologist)

    David Julius is an American physiologist known for his discovery of heat- and cold-sensing receptors in the nerve endings of the skin. His elucidation of a receptor known as TRPV1, along with his subsequent contributions to the discovery of additional temperature-sensitive receptor molecules, gave

  • Jullien, Marc-Antoine (French official)

    Italy: The Italian republics of 1796–99: …well as to the commissioner Marc-Antoine Jullien. Previously a follower of Babeuf, Jullien defied the wishes of the Directory in Paris for a moderate government. The Parthenopean Republic had the enthusiastic support of a number of southern intellectuals and notables (members of the social or economic elite).

  • Jullundur (India)

    Jalandhar, city, north-central Punjab state, northwestern India. It lies on a level plain about 20 miles (32 km) east of the Beas River. Jalandhar is an ancient city. In the 7th century ce it was the capital of a Rajput kingdom. The third largest city in the state, it is an important rail and road

  • Juluka (South African music group)

    Johnny Clegg: …they assembled a band called Juluka (Zulu: “Sweat”). In 1979 Juluka released Universal Men, an album that spoke to the divided lives of the migrant workers who reside and work in the city, separated from their families and homes. Stylistically, the album was a fusion of Zulu music and various…

  • Julus (millipede genus)

    millipede: …to many gardens, such as Julus (sometimes spelled Iulus) terrestris, a 25-mm (1-inch) species native to Europe and introduced into North America, and smooth-bodied forms often called wireworms. Some millipedes lack eyes and are brightly coloured; an example is the 25-mm greenhouse millipede (Oxidus gracilis). One of the most common…

  • July (month)

    July, seventh month of the Gregorian calendar. It was named after Julius Caesar in 44 bce. Its original name was Quintilis, Latin for the “fifth month,” indicating its position in the early Roman

  • July 20 Museum (museum, Bogotá, Colombia)

    Colombia: Cultural institutions: The July 20 Museum contains documents from the period of independence.

  • July 22 attacks (Norway)

    Oslo and Utøya attacks of 2011, terrorist attacks on Oslo and mass shooting on the island of Utøya in Norway on July 22, 2011, in which 77 people were killed—the deadliest incident on Norwegian soil since World War II. At 3:26 pm an explosion rocked downtown Oslo, shattering windows and damaging

  • July 4th (United States holiday)

    Independence Day, in the United States, the annual celebration of nationhood held on July 4. It commemorates the passage of the Declaration of Independence by the Continental Congress on July 4, 1776. This document announced the separation of the 13 North American colonies from Great Britain. In

  • July Days (Russian history)

    July Days, (July 16–20 [July 3–7, old style], 1917), a period in the Russian Revolution during which workers and soldiers of Petrograd staged armed demonstrations against the Provisional Government that resulted in a temporary decline of Bolshevik influence and in the formation of a new Provisional

  • July Days (French history)

    July Revolution, (1830), insurrection that brought Louis-Philippe to the throne of France. The revolution was precipitated by Charles X’s publication (July 26) of restrictive ordinances contrary to the spirit of the Charter of 1814. Protests and demonstrations were followed by three days of

  • July Manifesto (Polish history)

    Lubelskie: History: …of National Liberation issued the July Manifesto, which established a communist system, with the government seated in Lublin. Soon after the war ended, much of the population left the region’s ruined cities and towns and moved to land to the west that had been gained from defeated Germany.

  • July monarchy (French history)

    July monarchy, In French history, the reign of Louis-Philippe (1830–48), brought about by the July Revolution. Also known as the “bourgeois monarchy,” the new regime rested on a broad social base centred on the wealthy bourgeoisie. Two factions emerged in the Chamber of Deputies: the centre-right

  • July Offensive (Russian military operation [1917])

    June Offensive, (June [July, New Style], 1917), unsuccessful military operation of World War I, planned by the Russian minister of war Aleksandr Kerensky. The operation not only demonstrated the degree to which the Russian army had disintegrated but also the extent of the Provisional Government’s

  • July Ordinances (French history)

    France: Charles X, 1824–30: These July Ordinances, made public on the 26th, completed the polarization process and ensured that the confrontation would be violent.

  • July Plot (German assassination attempt, Rastenburg, East Prussia [1944])

    July Plot, abortive attempt on July 20, 1944, by German military leaders to assassinate Adolf Hitler, seize control of the government, and seek more favourable peace terms from the Allies. During 1943 and early 1944, opposition to Hitler in high army circles increased as Germany’s military

  • July Revolution (French history)

    July Revolution, (1830), insurrection that brought Louis-Philippe to the throne of France. The revolution was precipitated by Charles X’s publication (July 26) of restrictive ordinances contrary to the spirit of the Charter of 1814. Protests and demonstrations were followed by three days of

  • July’s People (novel by Gordimer)

    July’s People, alternate history novel written by South African author Nadine Gordimer and published in 1981. Set in an imaginary near future in which the apartheid system (still a decade from being abolished when the book was written) has come to a sudden and violent end, July’s People explores

  • July, Fourth of (United States holiday)

    Independence Day, in the United States, the annual celebration of nationhood held on July 4. It commemorates the passage of the Declaration of Independence by the Continental Congress on July 4, 1776. This document announced the separation of the 13 North American colonies from Great Britain. In

  • July, July (novel by O’Brien)

    Tim O’Brien: Other works: …the search for love, and July, July (2002), whose disillusioned characters gather for a college class reunion. In the nonfiction Dad’s Maybe Book (2019), O’Brien combines memoir with a discussion of parenting, including advice to his sons. In 2023 he published America Fantastica, his first novel in more than 20…

  • July, Miranda (American multimedia artist)

    Lydia Davis: Franzen, Dave Eggers, Miranda July, and David Foster Wallace.

  • Jumabay-ulï, Maghjan (Kazak author)

    Kazakhstan: Cultural life: …Bukeikhanov), Mırjaqyb Dülatūly, and, later, Mağjan Jumabayev (Magzhan Zhumabayev), represented the cream of Kazakh modernism in literature, publishing, and cultural politics in the reformist decades before Sovietization set in after 1920. All these figures disappeared into Soviet prisons and never returned, as a result of Joseph Stalin’s purges, which destroyed…

  • Jumaḥī, Ibn Sallām al- (Arab scholar)

    Arabic literature: Beginnings: …to al-Aṣmaʿī and his student Ibn Sallām al-Jumaḥī; the latter’s Ṭabaqāt fuḥūl al-shuʿarāʾ (“Classes of Champion Poets”) categorizes poets by both period and theme without providing any principles for his judgments. It fell to their successors to provide such criteria and the theoretical justification for them. Ibn Qutaybah, for example,…

  • Jumala (Finno-Ugric deity)

    Ukko, in Finnish folk religion, the god of thunder, one of the most important deities. The name Ukko is derived from ukkonen, “thunder,” but it also means “old man” and is used as a term of respect. Ukko had his abode at the centre of the heavenly vault, the navel of the sky; hence he was often

  • Jumanji (book by Van Allsburg)

    Chris Van Allsburg: …Medal for his second work, Jumanji (1981), a story about two children whose boring afternoon ends when their jungle board game comes to life in their house. The idea grew out of an assignment he had given his class while teaching at the Rhode Island School of Design: to draw…

  • Jumanji: The Next Level (film by Kasdan [2019])

    Danny Glover: Pig (2016), and Jumanji: The Next Level (2019). Glover made his feature-film directorial debut with Just a Dream in 2002.

  • Jumanji: Welcome to the Jungle (film by Kasdan [2017])

    Jack Black: Superstardom: …in the fantasy adventure film Jumanji: Welcome to the Jungle. In 2024 Black starred as a mischievous Satan in the Christmas movie Dear Santa. The following year he appeared opposite Jason Momoa in A Minecraft Movie, based on the popular open-world electronic game. He followed it up by headlining the

  • Jumaytepeque Xinka (language)

    Xinkan languages: Jumaytepeque Xinka, and Yupiltepeque Xinka. Extinct and poorly attested Jutiapa Xinka may have been a dialect of Yupiltepeque Xinka or possibly an additional distinct language. Chiquimulilla Xinka and Yupiltepeque Xinka are extinct. The last speaker of Chiquimulilla Xinka died in the late 1970s. There are…

  • Jumbe, Aboud (president of Zanzibar)

    Tanzania: Tanzania under Nyerere: His successor, Aboud Jumbe, had been a leading member of Karume’s government, and, while his policies did not differ markedly from those of Karume, they appeared to be moving gradually closer into line with mainland practices. The amalgamation of TANU and the ASP under the title of…

  • Jumblatt, Kamal (Lebanese politician)

    Camille Chamoun: …had made an alliance with Kamal Jumblatt, leader of the Progressive Socialist Party, and had won extensive support throughout the country. That September a general strike forced Khuri’s resignation, and Chamoun was elected president. Although Jumblatt had helped secure his election, Chamoun ignored him when it came to formulating government…

  • Jumblatt, Walid (Lebanese politician)

    Druze: The Druze in Lebanon: …assassination in 1977, his son Walid took over the political leadership of the Druze community in Lebanon. Like his father, he was often placed in the position of kingmaker in the country. His opposition to Syrian interference in Lebanon tended to give him a markedly pro-Western orientation. In 2011, however,…

  • Jumbo (elephant)

    circus: History: …Bailey circus was the legendary Jumbo, the largest elephant in the world, which Barnum acquired in 1882.

  • Jumbo Jim (American football player)

    Jim Parker was an American professional gridiron football player who, during his 11-year career with the Baltimore Colts, established himself as one of the finest offensive linemen in National Football League (NFL) history. Parker played collegiate football at the Ohio State University under

  • Jumbo vs. conventional mortgage: What’s the difference?

    If you’re in the market for a home—and a mortgage—you may soon find yourself inundated with unfamiliar terms. The jargon doesn’t stop with the mechanics of a mortgage (interest, principal, escrow, and more). There’s also the question of whether you’re looking for a conventional mortgage or a jumbo

  • Jumet (Belgium)

    Charleroi: Jumet, a northern suburb of Charleroi, was world famous for its glassmakers in the 19th century and sent some to the United States, where a similar and later competing industry was founded. Charleroi also became known as a centre for coal mining and the iron,…

  • Jumhurii Tojikiston

    Tajikistan, landlocked country lying in the heart of Central Asia. It is bordered by Kyrgyzstan on the north, China on the east, Afghanistan on the south, and Uzbekistan on the west and northwest. Tajikistan includes the Gorno-Badakhshan (“Mountain Badakhshan”) autonomous region, with its capital

  • Jumhūrīyah al-ʿArabīyah al-Muttaḥidah (historical republic, Egypt-Syria)

    United Arab Republic (U.A.R.), political union of Egypt and Syria proclaimed on February 1, 1958, and ratified in nationwide plebiscites later that month. It ended on September 28, 1961, when Syria, following a military coup, declared itself independent of Egypt. Years of political turmoil in

  • Jumhūrīyah al-ʿArabīyah al-Yamanīyah, Al- (former country, Yemen)

    Yemen: Two Yemeni states: …the Yemen Arab Republic (North Yemen). The young imam escaped from his battered palace, fled into the northern highlands, and began the traditional process of rallying the tribes to his cause. The new republic called upon Egypt for assistance, and Egyptian troops and equipment arrived almost immediately to defend…

  • Jumhurīyat al-Qumur al-Ittiḥādīyah al-Islāmīyah

    Comoros, an independent state comprising three of the main Comoro Islands in the Indian Ocean, off the coast of East Africa. The fourth main island of the Comorian archipelago, Mayotte, is claimed by the country of Comoros but administered by France. The volcanic islands of the Comorian archipelago

  • Jumhūrīyat al-Yaman ad-Dīmuqrāṭīyah ash-Shaʿbīyah (former country, Yemen)

    Yemen: Two Yemeni states: …Aden renamed the country the People’s Republic of South Yemen. Short of resources and unable to obtain any significant amounts of aid, either from the Western states or from those in the Arab world, it began to drift toward the Soviet Union, which eagerly provided economic and technical assistance in…

  • Jumhūrīyat As-Sūdān

    Sudan, country located in northeastern Africa. The name Sudan derives from the Arabic expression bilād al-sūdān (“land of the blacks”), by which medieval Arab geographers referred to the settled African countries that began at the southern edge of the Sahara. For more than a century, Sudan—first as

  • Jumhūriyyah al-Islāmiyyah al-Mūrītāniyyah, Al-

    Mauritania, country on the Atlantic coast of Africa. Mauritania forms a geographic and cultural bridge between the North African Maghrib (a region that also includes Morocco, Algeria, and Tunisia) and the westernmost portion of sub-Saharan Africa. Culturally, it forms a transitional zone between

  • Jumhūriyyah al-Jazāʾiriyyah al-Dīmuqrāṭiyyah al-Shaʿbiyyah, Al-

    Algeria, large, predominantly Muslim country of North Africa. From the Mediterranean coast, along which most of its people live, Algeria extends southward deep into the heart of the Sahara, a forbidding desert where Earth’s hottest surface temperatures have been recorded and which constitutes more

  • Jumhūriyyah al-Lībiyyah, Al-

    Libya, country located in North Africa. Most of the country lies in the Sahara desert, and much of its population is concentrated along the coast and its immediate hinterland, where Tripoli (Ṭarābulus), the de facto capital, and Benghazi (Banghāzī), another major city, are located. Libya comprises

  • Jumhūriyyah al-Lubnāniyyah, Al-

    Lebanon, country consisting of a narrow strip of territory on the eastern shore of the Mediterranean Sea with its capital in Beirut. Its rugged, mountainous terrain has served throughout history as an asylum for communities that were elsewhere marginalized and has given modern Lebanon a uniquely

  • Jumhūriyyah al-Yamaniyyah, Al-

    Yemen, country situated at the southwestern corner of the Arabian Peninsula. It is mostly mountainous and generally arid, though there are broad patches with sufficient precipitation to make agriculture successful. The people speak various dialects of Arabic and are mostly Muslims (see Islam). The

  • Jumhūriyyah al-ʿArabiyyah as-Sūriyyah, Al-

    Syria, country located on the east coast of the Mediterranean Sea in southwestern Asia. Its area includes territory in the Golan Heights that has been occupied by Israel since 1967. The present area does not coincide with ancient Syria, which was the strip of fertile land lying between the eastern

  • Jumhūrīyyah al-ʿIrāqīyyah, Al-

    Iraq, country of southwestern Asia. During ancient times, lands that now constitute Iraq were known as Mesopotamia (“Land Between the Rivers”), a region whose extensive alluvial plains gave rise to some of the world’s earliest civilizations, including those of Sumer, Akkad, Babylon, and Assyria.

  • Jumhūriyyah at-Tūnisiyyah, Al-

    Tunisia, country of North Africa. Tunisia’s accessible Mediterranean Sea coastline and strategic location have attracted conquerors and visitors through the ages, and its ready access to the Sahara has brought its people into contact with inhabitants of the African interior. According to Greek

  • Jumhūriyyah kaʾan (novel by al-Aswany)

    Alaa al-Aswany: …2018 novel Jumhūriyyah kaʾan (The Republic, As If), whose setting is the 2011 protests, was published in Beirut and banned in Egypt for its criticism of state institutions. A lawsuit was filed against him in March 2019 for a column he wrote for Deutsche Welle that criticized Pres. Abdel…

  • Jumhūriyyat Miṣr al-ʿArabiyyah

    Egypt, country located in the northeastern corner of Africa. Egypt’s heartland, the Nile River valley and delta, was the home of one of the principal civilizations of the ancient Middle East and, like Mesopotamia farther east, was the site of one of the world’s earliest urban and literate

  • Jumièges (France)

    Jumièges, town, northwestern France, Seine-Maritime département, Normandy région, west of Rouen. It is famous for the imposing ruins of its abbey. Situated by a wood within a loop of the Seine River, the abbey, one of the great establishments of the Benedictine order, was wrecked and used as a

  • Jumièges (abbey, France)

    Jumièges: …of the Seine River, the abbey, one of the great establishments of the Benedictine order, was wrecked and used as a stone quarry during the French Revolution. It was saved from complete destruction during the 19th century. The principal ruins are the abbey church of Notre-Dame, of which the facade,…

  • Jumilla (Spain)

    Jumilla, city, Murcia provincia (province) and comunidad autónoma (autonomous community), southeastern Spain. It lies at the foot of Mount Castillo (near Mount Carche and Sierra de Santa Ana) and on the Arroyo del Judío, a tributary of the Segura River, northwest of Murcia city. The Roman author

  • Jumis (Baltic deity)

    Baltic religion: Mēness: …fields is also guaranteed by Jumis, who is symbolized by a double head of grain, and by various mothers, such as Lauka māte (“Mother of the Fields”), Linu māte (“Mother of the Flax”), and Mieža māte (“Mother of the Barley”).

  • Jumna River (river, India)

    Yamuna River, major river of northern India, primarily in Uttarakhand and Uttar Pradesh states. It is one of the country’s most sacred rivers. The Yamuna rises on the slopes of the Bandarpunch massif in the Great Himalayas near Yamnotri (Jamnotri) in western Uttarakhand. It flows in a southerly

  • Jumo (Finno-Ugric deity)

    Finno-Ugric religion: High gods: Thus, the Cheremis Jumo has a real court with servants in his heaven, and these servants act as intermediaries between humans and the god of the sky. This indicates a Turko-Tatar influence, which can also be seen in the Udmurt Inmar. Christian elements, however, are also found (Inmar’s…

  • Jumo 004 (German jet engine)

    military aircraft: The jet age: …efforts led to the Junkers Jumo 004 engine. This became the most widely produced jet engine of World War II and the first operational axial-flow turbojet, one in which the air flows straight through the engine. By contrast, the Whittle and Heinkel jets used centrifugal flow, in which the air…

  • Jumonville Glen, Battle of (American history [1754])

    Battle of Jumonville Glen, opening battle of the French and Indian War, fought on May 28, 1754, also noteworthy as the combat action for George Washington. Imperial ambitions brought England and France into conflict in the Ohio River Valley, forming a theater in the global Seven Years’ War, of

  • jump (ice skating)

    figure skating: Jumps: Jumps are probably the most recognized element of figure skating. All jumps share the same rotational position in the air, and all are landed on one foot, but they are distinguished by their takeoff positions. They fall into two main groups: edge jumps (salchow,…

  • Jump (song by Van Halen)

    Van Halen: Megastardom and creative tensions: Featuring the hits “Jump” and “Panama,” the album made megastars of the band. Yet artistic and personal tensions grew between Eddie and Roth, both of whom wrestled with Van Halen’s creative control. Roth wanted to keep the group on its image-focused, pop-oriented trajectory, whereas Eddie wanted to develop…

  • jump ball (sports)

    basketball: Rules: Jump ball

  • jump blues (music)

    rhythm and blues: This music, sometimes called jump blues, set a pattern that became the dominant Black popular music form during and for some time after World War II. Among its leading practitioners were Jordan, Amos Milburn, Roy Milton, Jimmy Liggins, Joe Liggins, Floyd Dixon, Wynonie Harris, Big Joe Turner

  • jump cut (filmmaking)

    A Hard Day’s Night: …use of handheld cameras and jump-cut editing. Lester and the Beatles collaborated the following year on Help! (1965).

  • Jump into the Fire (song by Nilsson)

    Harry Nilsson: Fame as songwriter and singer: …100) and the raucous “Jump into the Fire” (number 27 on the Hot 100).

  • Jump Jim Crow (minstrel routine by Rice)

    Jim Crow law: Jim Crow was the name of a minstrel routine (actually Jump Jim Crow) performed beginning in 1828 by its author, Thomas Dartmouth (“Daddy”) Rice, and by many imitators, including actor Joseph Jefferson. The term came to be a derogatory epithet for African Americans and a…

  • jump rope (game)

    jump rope, children’s game played by individuals or teams with a piece of rope, which may have handles attached at each end. Jump rope, which dates back to the 19th century, is traditionally a girls’ playground or sidewalk activity in which two players turn a rope (holding it by its ends and

  • jump rope rhyme

    jump rope rhyme, any of innumerable chants and rhymes used by children, traditionally girls, to accompany the game of jump rope. Based on a few simple forms, such rhymes characteristically travel very quickly in variation from child to child, in contrast to nursery rhymes, which are passed on by

  • Jump, Darling (film by Connell [2020])

    Cloris Leachman: …Can Only Imagine (2018), and Jump, Darling (2020). She also provided the voice of a cavewoman in the animated family comedy The Croods (2013) and its sequel (2020).

  • Jump, Jive, an’ Wail (work by Prima)

    Louis Prima: …“Sing, Sing, Sing” and “Jump, Jive, an’ Wail.” In the 1950s he led one of the first musical acts to regularly perform and establish a residency in the lounges and casinos of Las Vegas. His musical style encompassed Dixieland jazz, swing, big band music, boogie-woogie, rhythm and blues (R&B),…

  • Jumper, John M. (American computer scientist)

    John M. Jumper is an American computer scientist who was awarded the 2024 Nobel Prize in Chemistry for his work using artificial intelligence (AI) to find the three-dimensional structure of proteins. He shared half the prize with his colleague, English computer scientist Demis Hassabis, and the

  • Jumpers (play by Stoppard)

    Tom Stoppard: Plays: …The Real Inspector Hound (1968), Jumpers (1972), Travesties (1974; Tony Award for best play), Every Good Boy Deserves Favour (1978), Night and Day (1978), Undiscovered Country (1980, adapted from a play by Arthur Schnitzler), and On the Razzle (1981, adapted from a play by Johann Nestroy

  • Jumpin’ Jack Flash (film by Marshall [1986])

    Penny Marshall: …made her directorial debut with Jumpin’ Jack Flash. She followed with the movie Big (1988); a hit with both critics and moviegoers, it recounted the adventures of a 12-year-old whose wish to be older comes true. It was the first film directed by a woman to gross more than $100…

  • Jumpin’ Jack Flash (song by Jagger and Richards)

    the Rolling Stones: First original hits: (I Can’t Get No) Satisfaction and Get Off of My Cloud: …with the epochal single “Jumpin’ Jack Flash,” which reconnected them to their blues-rock roots, and the album Beggars Banquet. Replacing Jones with the virtuosic but self-effacing guitarist Mick Taylor, they returned to the road in 1969, almost instantly becoming rock’s premier touring attraction.

  • jumping (horsemanship)

    horsemanship: Jumping: The most sensitive parts of the horse when ridden are the mouth and the loins, particularly in jumping. The rider’s hands control the forehand while the legs act on the hindquarters. As speed is increased the seat is raised slightly from the saddle, with…

  • jumping (form of locomotion)

    locomotion: Saltation: The locomotor pattern of saltation (hopping) is confined mainly to kangaroos, anurans (tailless amphibians), rabbits, and some groups of rodents in the vertebrates and to a number of insect families in the arthropods. All saltatory animals have hind legs that are approximately twice as…

  • jumping ant spider (arachnid)

    jumping ant spider, (Myrmarachne formicaria), species of jumping spider that mimics a redwood ant (Formica rufa) in both appearance and behavior to escape predators. The spider is native to grasslands in temperate regions of Eurasia, and has been accidentally introduced to parts of the eastern

  • jumping bean, Mexican

    Mexican jumping bean, the seed of certain Mexican shrubs, especially those of the genus Sebastiania, of the spurge family (Euphorbiaceae), that contain larvae of a small olethreutid moth (Laspeyresia salitans). The movements of the larvae feeding on the pulp within the seed, which are intensified

  • jumping cholla (cactus)

    cholla: Teddy bear cholla, or jumping cholla (C. bigelovii), is native to northwestern Mexico and the southwestern United States and is sometimes cultivated as a desert ornamental for its showy golden spines. Chollas were formerly placed in the prickly pear genus (Opuntia).

  • jumping event (athletics)

    athletics: Jumping: Men and women compete in four jumping events: the high jump, long jump, triple jump, and pole vault.

  • jumping gene (genetics)

    transposon, class of genetic elements that can “jump” to different locations within a genome. Although these elements are frequently called “jumping genes,” they are always maintained in an integrated site in the genome. In addition, most transposons eventually become inactive and no longer move.

  • jumping hare (rodent)

    spring hare, (Pedetes capensis), a bipedal grazing rodent indigenous to Africa. About the size of a rabbit, the spring hare more closely resembles a giant jerboa in having a short round head, a thick muscular neck, very large eyes, and long, narrow upright ears. Like jerboas, it has short forelegs

  • jumping mouse (rodent)

    jumping mouse, (subfamily Zapodinae), any of five species of small leaping rodents found in North America and China. Jumping mice weigh from 13 to 26 grams (0.5 to 0.9 ounce) and are 8 to 11 cm (3.1 to 4.3 inches) long, not including the scantily haired tail, which is longer than the body. Their

  • jumping pit viper (snake, Bothrops nummifera)

    fer-de-lance: The jumping viper is an aggressive brown or gray Central American snake with diamond-shaped crosswise markings on its back. It is usually about 60 cm (2 feet) long. It strikes so energetically that it may lift itself off the ground. Its venom, however, is not especially…

  • jumping plant louse (insect)

    jumping plant louse, any member of the approximately 2,000 species of the insect family Psyllidae (order Homoptera). The jumping plant louse is about the size of a pinhead. Its head, long antennae and legs, and transparent wings resemble, on a reduced scale, the features of the cicada. Eggs are

  • jumping saddle (horsemanship)

    horsemanship: Forward seat: The forward seat, favoured for show jumping, hunting, and cross-country riding, is generally considered to conform with the natural action of the horse. The rider sits near the middle of the saddle, his torso a trifle forward, even at the halt. The saddle…

  • jumping spider (arachnid)

    jumping spider, (family Salticidae), any of more than 6,000 species of spiders (order Araneae) known for their ability to jump and pounce upon their prey. The largest and most diverse of the spider families, jumping spiders are very common in the tropics, but some live in northern and even Arctic

  • JumpStation (search engine)

    search engine: History: JumpStation, created by Jonathon Fletcher of the University of Stirling in Scotland, followed in December of 1993. Given that the new Web-searching tool included a user interface, it is remembered today as the first to incorporate all three major components (crawling, indexing, and searching) that…

  • Jumyella (Spain)

    Jumilla, city, Murcia provincia (province) and comunidad autónoma (autonomous community), southeastern Spain. It lies at the foot of Mount Castillo (near Mount Carche and Sierra de Santa Ana) and on the Arroyo del Judío, a tributary of the Segura River, northwest of Murcia city. The Roman author

  • jumʿah (Islam)

    jumʿah, Friday of the Muslim week and the special noon service on Friday that all adult, male, free Muslims are obliged to attend. The jumʿah, which replaces the usual noon ritual prayer (ṣalāt al-ẓuhr), must take place before a sizable number of Muslims (according to some legal scholars, 40) in

  • Jun kiln (pottery)

    Jun kiln, Chinese kiln known for the stoneware it created during the Northern Song period (960–1126) in Junzhou (now Yuzhou), in northern Henan. One class of glazed wares produced at the kiln consisted mostly of opalescent blue pieces (ranging from grayish blue to a plum colour), many strikingly

  • Jun ware (pottery)

    Jun kiln, Chinese kiln known for the stoneware it created during the Northern Song period (960–1126) in Junzhou (now Yuzhou), in northern Henan. One class of glazed wares produced at the kiln consisted mostly of opalescent blue pieces (ranging from grayish blue to a plum colour), many strikingly