The Baltimore Sun: …Times Mirror merged with the Tribune Company, and The Baltimore Sun thereby became a subsidiary of the latter. An Internet version of the paper was launched in 1996. In 2014 the publishing division of the Tribune Company was spun off, and The Sun became part of the newly formed company,…

The Baltimore Sun: …Times Mirror merged with the Tribune Company, and The Baltimore Sun thereby became a subsidiary of the latter. An Internet version of the paper was launched in 1996. In 2014 the publishing division of the Tribune Company was spun off, and The Sun became part of the newly formed company,…

Tribune Tower, Gothic Revival 36-floor office building, located at 435 N. Michigan Ave., in downtown Chicago, which opened in 1925 as headquarters for the Chicago Tribune. In 1922, on the occasion of its 75th anniversary, the newspaper announced an international competition for a new downtown

theatre: Production aspects of Expressionist theatre: The major Expressionist theatre was Der Tribune, in Berlin. The Expressionist stage neither simulated reality nor suggested unreality. It existed in its own right as the platform from which direct statements could be made. Settings therefore tended to be abstract or, when specific, highly subjective. Techniques of distortion and incongruous…

tribune, any of various military and civil officials in ancient Rome. Military tribunes (tribuni militum) were originally infantry commanders. Under the early republic there were six to a legion; some were appointed by the consuls (chief executives) or military commanders, and others were elected

ancient Rome: Military tribunes with consular power: The creation of the office of military tribunes with consular power in 445 bc was believed to have involved the struggle of the orders. The annalistic tradition portrayed the innovation as resulting from a political compromise between plebeian tribunes, demanding…

ancient Rome: The plebeian tribunate: According to the annalistic tradition, one of the most important events in the struggle of the orders was the creation of the plebeian tribunate. After being worn down by military service, bad economic conditions, and the rigours of early Rome’s debt law, the…

tribune, any of various military and civil officials in ancient Rome. Military tribunes (tribuni militum) were originally infantry commanders. Under the early republic there were six to a legion; some were appointed by the consuls (chief executives) or military commanders, and others were elected

ancient Rome: Military tribunes with consular power: The creation of the office of military tribunes with consular power in 445 bc was believed to have involved the struggle of the orders. The annalistic tradition portrayed the innovation as resulting from a political compromise between plebeian tribunes, demanding…

ancient Rome: The plebeian tribunate: According to the annalistic tradition, one of the most important events in the struggle of the orders was the creation of the plebeian tribunate. After being worn down by military service, bad economic conditions, and the rigours of early Rome’s debt law, the…

tribe, in Roman history, a unit of the Roman state. The first Roman tribes were probably ethnic in origin and consisted of the Titienses (Tities), Ramnenses (Ramnes), and Luceres. They were superseded by the creation of new local tribes (date uncertain) consisting of 4 urban tribes and 16 rural, or

London: The valley of the Thames: …place, one must add the tributary streams running north and south from the hills to the great river on the valley floor, many of them rising from springs in the gravel. Those in the center of town have long since been culverted over, except where they do duty as ornamental…

tributary system, model by which China conducted foreign relations from approximately the Han dynasty (206 bce–220 ce) to the Qing dynasty (1644–1911/12). This system expressed the Chinese emperor’s belief that China was culturally and materially superior to all other states, and it required those

Tribute Money, fresco created about 1423 to 1427 in the Brancacci Chapel of Santa Maria del Carmine basilica in Florence, by Florentine artist Masaccio. Tribute Money is part of a group of early Renaissance frescoes that Masaccio painted possibly alongside Masolino depicting the original sin of

Andrea del Sarto: Sarto’s fresco Tribute to Caesar is a fragment now incorporated into a much later decorational scheme.

taxation: Administration of taxation: …principal of these was the tributum, paid by citizens and usually levied as a head tax; later, when additional revenue was required, the base of this tax was extended to real estate holdings. In the time of Julius Caesar, a 1 percent general sales tax was introduced (centesima rerum venalium).…

ancient Rome: Administration of the provinces: …occupiers of provincial soil, and tributum capitis, paid on other forms of property (it was not a poll tax, except in Egypt and in certain backward areas). In addition, the provinces paid indirect taxes, such as harbor dues. In imperial provinces the direct taxes (tributa) were paid to the emperor’s…

ancient Rome: Administration of the provinces: …for the two direct taxes: tributum soli, exacted from occupiers of provincial soil, and tributum capitis, paid on other forms of property (it was not a poll tax, except in Egypt and in certain backward areas). In addition, the provinces paid indirect taxes, such as harbor dues. In imperial provinces…

tributyl phosphate, an organic liquid solvent used in the extraction of uranium and plutonium salts from reactor effluents, as a solvent for nitrocellulose and cellulose acetate, and as a heat-exchange medium. A phosphorus-containing compound with molecular formula (C4H9)3PO4, it is prepared by

amine: Nomenclature of amines: ethyl(propyl)amine), CH3CH2NHCH2CH2CH3; and tributylamine, (CH3CH2CH2CH2)3N. Two or more groups cited are in alphabetical order; to clarify which groups are attached to nitrogen rather than to each other, Ns or internal parentheses are used. A few aromatic amines and most cyclic amines have trivial (nonsystematic) names (e.g., aniline, C6H5NH2),…

cement: Chemical composition: …dicalcium silicate (2CaO · SiO2), tricalcium aluminate (3CaO · Al2O3), and a tetra-calcium aluminoferrite (4CaO · Al2O3Fe2O3). In an abbreviated notation differing from the normal atomic symbols, these compounds are designated as C3S, C2S, C3A, and C4AF, where C stands for calcium oxide (lime), S for

chemical industry: Phosphorus: …consists largely of the insoluble tricalcium phosphate, together with some other materials, including some fluorine. To be used as a fertilizer, phosphate must be converted to a form that is soluble in water, even if only slightly so.

cement: Chemical composition: …up of four main compounds: tricalcium silicate (3CaO · SiO2), dicalcium silicate (2CaO · SiO2), tricalcium aluminate (3CaO · Al2O3), and a tetra-calcium aluminoferrite (4CaO · Al2O3Fe2O3). In an abbreviated notation differing from the normal atomic symbols, these compounds are designated as C3S, C2

tricarboxylic acid cycle, the second stage of cellular respiration, the three-stage process by which living cells break down organic fuel molecules in the presence of oxygen to harvest the energy they need to grow and divide. This metabolic process occurs in most plants, animals, fungi, and many

cellulose acetate: …triacetate fibre under the trademark Tricel. In the United States triacetate was introduced under the trademarked name Arnel. Triacetate fabrics became known for their superior shape retention, resistance to shrinking, and ease of washing and drying.

triceps muscle, any muscle with three heads, or points of origin, particularly the large extensor along the back of the upper arm in humans. It originates just below the socket of the scapula (shoulder blade) and at two distinct areas of the humerus, the bone of the upper arm. It extends downward

triceps muscle: …of the lower leg (triceps surae).

Triceratops, (genus Triceratops), large quadrupedal plant-eating ceratopsian dinosaur that had a frill of bone at the back of its skull and three prominent horns. Fossils of “three-horned face,” as its Latin name is usually translated, date to the final 3 million years of the Cretaceous Period

Triceratops, (genus Triceratops), large quadrupedal plant-eating ceratopsian dinosaur that had a frill of bone at the back of its skull and three prominent horns. Fossils of “three-horned face,” as its Latin name is usually translated, date to the final 3 million years of the Cretaceous Period

manatee: Evolution and paleontology: …living members of the family Trichechidae, which is related to the dugong family, Dugongidae. Both families belong to the order Sirenia, whose closest living relatives are elephants of the order Proboscidea. The fossil ancestors of modern manatees lived during the Miocene Epoch (23 million to 5.3 million years ago), when…

manatee, (genus Trichechus), any of three species of large slow aquatic mammals found along tropical and subtropical Atlantic coasts and associated inland waters, including the watersheds of the Amazon and Niger rivers. Dull gray, blackish, or brown in colour, all three manatee species have stout

Amazon River: Animal life: …the giant sea cow, or manatee, is sought for its flesh and for oil. All are threatened by overhunting, and the manatee has been listed as an endangered species. Aquatic animals also include river dolphins (Inia geoffrensis); the semiaquatic capybara, the largest rodent in the world (weighing up to 170…

manatee: …is one subspecies of the West Indian manatee (T. manatus). The other subspecies lives in nearshore waters, lagoons, estuaries, and rivers of eastern Mexico, down the Central American coast, and across northern South America. It also occurs around the Greater Antilles islands of the Caribbean

manatee: The Florida manatee (Trichechus manatus latirostris), which is also found seasonally in the waters of nearby states, is one subspecies of the West Indian manatee (T. manatus). The other subspecies lives in nearshore waters, lagoons, estuaries, and rivers of eastern Mexico, down the Central American coast,

manatee: …Caribbean—hence its common name, the Antillean manatee (T. manatus manatus).

manatee: Evolution and paleontology: The West African manatee is also similar to the ancestral forms and may have dispersed from South America to Africa via transoceanic currents. Amazonian manatees appear to be descendants of Miocene trichechids isolated in a closed interior basin of South America.

euro-zone debt crisis: The crisis unfolds: …European Central Bank (ECB) president Jean-Claude Trichet (succeeded by Mario Draghi in October 2011). Germany, as Europe’s largest economy, would shoulder much of the financial burden associated with an EU-funded bailout plan, and Merkel paid a domestic political price for her commitment to the preservation of the EU. Billions of…

Sapindales: Distribution and abundance: …in Indo-Malaysia and tropical Australia; Trichilia (85 species), which occur commonly as understory trees in lowland forests from Mexico to the West Indies, tropical South America, and tropical Africa; Dysoxylum (80 species) from Indo-Malaysia to the islands of the Pacific; Turraea (60 species) in tropical and southern Africa to Australia;…

Trichinella spiralis, parasitic worm of the phylum Nematoda that causes trichinosis, a serious disease in humans and other mammals, including pigs, cats, dogs, bears, foxes, and rats. The worm occurs worldwide. It ranges in length from 1.5 to 4 mm (0.06 to 0.2 inch), males being smaller than

Trichinella spiralis, parasitic worm of the phylum Nematoda that causes trichinosis, a serious disease in humans and other mammals, including pigs, cats, dogs, bears, foxes, and rats. The worm occurs worldwide. It ranges in length from 1.5 to 4 mm (0.06 to 0.2 inch), males being smaller than

Trichinella spiralis, parasitic worm of the phylum Nematoda that causes trichinosis, a serious disease in humans and other mammals, including pigs, cats, dogs, bears, foxes, and rats. The worm occurs worldwide. It ranges in length from 1.5 to 4 mm (0.06 to 0.2 inch), males being smaller than

trichinosis, disorder resulting from infestation with roundworms of genus Trichinella, especially the small roundworm T. spiralis. Trichinosis commonly is acquired by humans by the eating of undercooked pork that contains encapsulated larvae of the parasites. In the stomach and small intestine, the

trichinosis, disorder resulting from infestation with roundworms of genus Trichinella, especially the small roundworm T. spiralis. Trichinosis commonly is acquired by humans by the eating of undercooked pork that contains encapsulated larvae of the parasites. In the stomach and small intestine, the

Tiruchchirappalli, city, east-central Tamil Nadu state, southeastern India. It lies at the head of the Kaveri (Cauvery) River delta, about 30 miles (50 km) west of Thanjavur. The city also includes administratively the pilgrimage center of Srirangam. Tiruchchirappalli was an important regional

trichinosis, disorder resulting from infestation with roundworms of genus Trichinella, especially the small roundworm T. spiralis. Trichinosis commonly is acquired by humans by the eating of undercooked pork that contains encapsulated larvae of the parasites. In the stomach and small intestine, the

gymnostome: …(known as nematodesmata, sometimes called trichites) embedded in the gullet wall; the plant feeders (e.g., Chilodonella) have trichites fused into pharyngeal baskets. The genus Didinium, a predator of the protozoan ciliate Paramecium, divides asexually for extended periods. In time of famine it forms a resistant stage (cyst) and undergoes nuclear…

cutlass fish, any of several species of fishes in the family Trichiuridae (order Perciformes). All species are marine; representatives occur in the Atlantic, Pacific, and Indian oceans. Cutlass fishes have a distinctive appearance with a long eel-like body and a low dorsal fin that extends the

cutlass fish: One species (Trichiurus lepturus) attains a maximum length of 1.5 metres (5 feet). The family consists of 10 genera and about 45 species.

chloral hydrate, the first synthetically produced sedative-hypnotic drug, commonly used in the late 19th century to treat insomnia and still occasionally used to reduce anxiety or produce sleep before surgery. Chloral hydrate acts as a depressant on the central nervous system, with sedative effects

carboxylic acid: Acidity: …greater effect is found in trichloroacetic acid, Cl3CCOOH, whose acid strength is about the same as that of hydrochloric acid.

trichloroethane, either of two isomeric colourless, nonflammable liquids belonging to the family of halogenated hydrocarbons. One isomer, 1,1,1-trichloroethane, was used as a solvent for cleaning and degreasing metal and electronic machinery. It was also used as a coolant and in the manufacture of

trichloroethylene, a colourless, toxic, volatile liquid belonging to the family of organic halogen compounds, nonflammable under ordinary conditions and used as a solvent and in adhesives. Trichloroethylene has a subtle, sweet odour. Trichloroethylene was first prepared in 1864; its commercial

chlorofluorocarbon: Some of these compounds, especially trichlorofluoromethane (CFC-11) and dichlorodifluoromethane (CFC-12), found use as aerosol-spray propellants, solvents, and foam-blowing agents. They are well suited for these and other applications because they are nontoxic and nonflammable and can be readily converted from a liquid to a gas and vice versa.

chloroform (CHCl3), nonflammable, clear, colourless liquid that is denser than water and has a pleasant etherlike odour. It was first prepared in 1831. The Scottish physician Sir James Simpson of the University of Edinburgh was the first to use it as an anesthetic in 1847. It later captured public

diphosgene, in chemical warfare, poison gas widely used by Germany during World War I. Its chemical name is trichloromethyl chloroformate, and it is a colourless, moderately persistent, poisonous, organic compound, the odour of which is likened to that of newly mown hay. It is easily condensable to

chloropicrin (Cl3CNO2), toxic organic compound used alone or in combination with methyl bromide as a soil fumigant and fungicide. Chloropicrin has a boiling point of 112 °C (234 °F). Its vapours are irritating to the skin, eyes, and upper respiratory tract, and it has been used in chemical warfare

scorpion: Internal features: Long, thin hairlike structures called trichobothria are most easily deflected by air vibrations originating perpendicular to one plane. These hairs are situated on the pedipalps along different planes and thus allow scorpions to detect the direction of air movement, which enables them to catch aerial prey, detect predators, and navigate…

scorpion: Internal features: Long, thin hairlike structures called trichobothria are most easily deflected by air vibrations originating perpendicular to one plane. These hairs are situated on the pedipalps along different planes and thus allow scorpions to detect the direction of air movement, which enables them to catch aerial prey, detect predators, and navigate…

orchid: Sexual deception: The South American orchid Trichoceros antennifer has flowers that simulate the female flies of the genus Paragymnomma to a remarkable degree. The column and base of the lip are narrow, barred with yellow and red-brown, and they extend laterally to simulate the extended wings of a sitting fly. The…

trichocyst, a structure in the cortex of certain ciliate and flagellate protozoans consisting of a cavity and long, thin threads that can be ejected in response to certain stimuli. Trichocysts may be widely distributed over an organism or restricted to certain areas (e.g., tentacles, papillae,

Red Sea: …extensive blooms of the algae Trichodesmium erythraeum, which, upon dying off, turn the sea a reddish brown colour.

perciform: Annotated classification: Family Trichodontidae (sandfishes) Resemble codfishes, but eyes high on side of head; mouth large, oblique; lips fringed; pectoral fins with long base extending forward past pelvic fins. 2 species; marine; North Pacific; to 25 cm (10 inches). Family Pholidichthyidae (convict-blennies

gourami: …red and blue; and the three-spot, or blue, gourami (Trichopodus trichopterus or Trichogaster trichopterus), a dark-spotted, silvery or blue species. The kissing gourami, or kissing fish (Helostoma temmincki), a greenish or pinkish white fish noted for its “kissing” activities, is a popular food fish and common in home aquariums.

parrot: …make up the Psittacidae subfamily Loriinae. The 53 species in 12 genera are found in Australia, New Guinea, and some Pacific islands. All have a slender, wavy-edged beak and a brush-tipped tongue for extracting nectar from flowers and juices from fruits.

lorikeet: The rainbow lorikeet (Trichoglossus haematodus) is among the most spectacular and variable of the group, with 21 races scattered over the southwestern Pacific. Most races of this 150-gram (5-ounce) species have red bills, blue heads, green wings, and black feet, though the colour and pattern of…

trichogrammatid wasp: …wasps, particularly of the genus Trichogramma. Adults are typically less than 1 mm (0.04 inch) long, with pear-shaped wings having a single vein and fringing hairs. Members of the genus Megaphragma are among the smallest known insects; M. caribea has a body length of about 170 μm (0.007 inch) and…

trichogrammatid wasp: T. minutum, which is readily cultured in the laboratory, has been successfully employed against various lepidopteran agricultural pests.

trichogrammatid wasp, (family Trichogrammatidae), any of a group of around 1,000 species of tiny, parasitic chalcid wasps, particularly of the genus Trichogramma. Adults are typically less than 1 mm (0.04 inch) long, with pear-shaped wings having a single vein and fringing hairs. Members of the

trichogrammatid wasp, (family Trichogrammatidae), any of a group of around 1,000 species of tiny, parasitic chalcid wasps, particularly of the genus Trichogramma. Adults are typically less than 1 mm (0.04 inch) long, with pear-shaped wings having a single vein and fringing hairs. Members of the

Natal grass, (Melinis repens), tufted grass of the family Poaceae, native to southern Africa. Natal grass is cultivated as a forage and ornamental grass and is considered an invasive species in some areas outside its native range, particularly in Australia and parts of the Americas. Natal grass

Agaricales: Other families and genera: …Japanese Americans, who call it matsutake after the closely related Japanese species T. matsutake. The genus also contains a number of inedible forms, including the very poisonous T. pardinum.

matsutake mushroom, (Tricholoma matsutake), prized edible and medicinal wood-dwelling fungus of the family Tricholomataceae (order Agaricales). Matsutake mushrooms are native to the pine forests of East Asia and northern Europe. Considered delicacies known for their earthy flavor, meaty

matsutake mushroom: Appearance and properties: magnivelare, and T. mesoamericanum varieties that grow in North America and Central America. These versatile species occupy a more expansive and diverse environmental range than T. matsutake and, therefore, have developed wider genotypic variation. Although these species are closely related to T. matsutake, they are not considered…

matsutake mushroom: Appearance and properties: These species include the T. murrillianum, T. magnivelare, and T. mesoamericanum varieties that grow in North America and Central America. These versatile species occupy a more expansive and diverse environmental range than T. matsutake and, therefore, have developed wider genotypic variation. Although these species are

Agaricales: Other families and genera: …forms, including the very poisonous T. pardinum.

fern: Annotated classification: …principal genera are Hymenophyllum and Trichomanes; 9 genera (different authorities give anywhere from 2 to more than 28) with some 600 species found in tropical regions around the world, a few species extending into temperate areas. Order Gleicheniales Family Gleicheniaceae (

Hymenophyllaceae: …a species of filmy fern, Trichomanes intricatum, that is most unusual in that it exists only as isolated colonies of independent gametophytes. These gametophytes, which occupy cool, highly shaded microclimates underneath overhanging cliffs and boulders, apparently have lost the capacity to complete their life cycle and produce new sporophytes. In…

fern: Surface structure: …consisting of hairs, known as trichomes, or scales; these are so distinctive that they are valuable in identification and classification. The indument includes such diverse types of epidermal emergences as simple glands (unbranched one- to several-celled trichomes with a headlike cluster of secretory terminal cells), simple (unbranched) nonglandular trichomes, dendroid…

trichomonad, any protozoan of the zooflagellate order Trichomonadida. Trichomonads have three to six flagella, and one commonly trails or borders an undulating membrane. Most trichomonads inhabit the digestive systems of animals. They may be uninucleate or multinucleate. Reproduction is by

trichomonad, any protozoan of the zooflagellate order Trichomonadida. Trichomonads have three to six flagella, and one commonly trails or borders an undulating membrane. Most trichomonads inhabit the digestive systems of animals. They may be uninucleate or multinucleate. Reproduction is by

trichomoniasis: …by the flagellate protozoan parasite Trichomonas. Infection is most often intestinal, but it may occur in other cavities or organs such as the liver.

sexually transmitted disease: Trichomoniasis and candidiasis: …tract caused by a protozoan, Trichomonas vaginalis; males usually have no symptoms with this infection, and only a portion of infected females have a vaginal discharge.

trichomoniasis, infection by the flagellate protozoan parasite Trichomonas. Infection is most often intestinal, but it may occur in other cavities or organs such as the liver. The species Trichomonas vaginalis is a common cause of sexually transmitted infection in humans. Infection occurs more

ostariophysan: Annotated classification: Family Trichomycteridae (candirus and other parasitic catfishes) Operculum (gill cover) usually with spines. Many parasitic. Size to 10 cm (4 inches). The similar family Cetopsidae lacks opercular spines. Costa Rica, Panama, and South America. About 41 genera, 201 species. Family Nematogenyidae (mountain catfishes)

joro spider, (Trichonephila clavata), large and visually striking orb weaver spider. Native to Asia, including China, India, Vietnam, Japan, Taiwan, and Korea, joro spiders were introduced to the southeastern United States in the 2010s and are considered an invasive species. The nonaggressive,

perciform: Annotated classification: Family Trichonotidae (sand divers) Resemble Percophiidae but body extremely elongated and dorsal fin unusually high; snout pointed; lips fringed; dive headfirst into sand. 8 species; tropical and subtropical Indo-Pacific oceans. Family Creediidae Elongate little fishes resembling Percophiidae; 16 species; coasts of Australia, Marshall and Mariana islands.

hypermastigote: In the genus Trichonympha encystment and sexual reproduction are initiated by the molting of the host woodroach.

tineid moth: …moth (Tinea pellionella), and the carpet, tapestry, or white-tip clothes moth (Trichophaga tapetzella). The larvae of the casemaking clothes moth use silk and fragments of food to construct a small, flat, oval case in which the larvae live and pupate. Clothes-moth larvae also attack synthetic or plant-fibre fabrics soiled with…

Trichophyton, genus of fungi that infects the skin, hair, and nails of humans and other animals. Fungi of this genus are one of several causes of athlete’s foot, jock itch, and other ringworm infections in people. Although worldwide in distribution, some species apparently are more abundant in some

athlete’s foot: Causes: T. rubrum is the dermatophyte most commonly associated with athlete’s foot. Although other dermatophytes can also cause the condition, they are less frequently isolated from humans. Fungal spores from T. rubrum can live in human scales for 12 months and are therefore easily transmitted from…

Trichophyton: T. schoenleini, for example, is the cause of a human skin infection in the Mediterranean, and T. rubrum causes a similar disease in the tropics.

Trichophyton: Common species and related diseases: …the diseases they cause are:

cabbage looper: The adults, known as Ni moths, migrate considerable distances. They are mottled brown with a pale Y-shaped mark on each forewing. The typical adult wingspan is about 25 mm (1 inch).

caddisfly, (order Trichoptera), any of a group of around 17,000 species of mothlike insects that are attracted to lights at night and live near lakes or rivers. They are an important food for many fish, particularly in their immature, aquatic stages, and are vital to local food webs. Because trout

snake gourd, (Trichosanthes cucumerina), rapid-growing vine of the gourd family (Cucurbitaceae), cultivated for its oddly shaped edible fruits. The snake gourd is native to southeastern Asia and Australia and is also grown in parts of tropical Africa. The whole fruit is eaten as a vegetable when

fungus: Annotated classification: Order Trichosphaeriales (incertae sedis; not placed in any subclass) Pathogenic on plants, saprotrophic on wood; ascomata globose, dark, and superficial; cylindrical, stalked asci; some produce muriform (brick-shaped) spores; example genus is Trichosphaeria. Pezizomycotina (incertae sedis; not placed in any class) Order

trichostome, any ciliate protozoan of the holotrichous order Trichostomatida. Free-living forms are found in freshwater (e.g., Tillina), salt water (e.g., Woodruffia), and decaying vegetation; parasitic forms also occur. Trichostomes usually have a heavily ciliated vestibule (outer cavity) that

trichostome, any ciliate protozoan of the holotrichous order Trichostomatida. Free-living forms are found in freshwater (e.g., Tillina), salt water (e.g., Woodruffia), and decaying vegetation; parasitic forms also occur. Trichostomes usually have a heavily ciliated vestibule (outer cavity) that

phalanger: arnhemensis) and the mountain brush-tailed possum (T. caninus), are also relatively common.

marsupial: Paleontology and recent history: In Australia the brushtail possum (Trichosurus vulpecula) is an example of a marsupial that has readily adapted to changing conditions brought about by people and is even plentiful in some urban centres. Its adaptability to different locales is attributed to its tolerance for a variety of food, including…