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Gregarina, a protozoan, various species which live in the alimentary canal of crayfishes, centipeds, and certain insects. It is a parasite living at the expense of the host in whose whose body it lives in. A stage in the conjugation and spore forming of Gregarina polymopha.

Protozoan

Gregarina, a protozoan, various species which live in the alimentary canal of crayfishes, centipeds,…

Gregarina, a protozoan, various species which live in the alimentary canal of crayfishes, centipeds, and certain insects. It is a parasite living at the expense of the host in whose whose body it lives in. A stage in the conjugation and spore forming of Gregarina polymopha.

Protozoan

Gregarina, a protozoan, various species which live in the alimentary canal of crayfishes, centipeds,…

Many mollusks live upon seaweeds, and the greater number of terrestrial forms are fond of garden vegetables. The food needs to be masticated and the mouth is usually provided with horny jaws, and an additional matricatory apparaus which consists of a kind of tongue with eight to forty thousand minute teeth in our land forms, while in certain marine snails they are beyond computation. With the licking motion of the tongue this rasp tears the food into shreds before it is swallowed. Shown here is a small portion of the radula or tongue-rasp of a snail.

Snail

Many mollusks live upon seaweeds, and the greater number of terrestrial forms are fond of garden vegetables.…

A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacean, and is hence distantly related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in erosive settings. They are sessile suspension feeders, and have two nektonic larval stages. Barnacles are encrusters, attaching themselves permanently to a hard substrate. Shown is a barnacle larva.

Barnacles

A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacean, and…

A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacean, and is hence distantly related to crabs and lobsters. Barnacles are exclusively marine, and tend to live in shallow and tidal waters, typically in erosive settings. They are sessile suspension feeders, and have two nektonic larval stages. Barnacles are encrusters, attaching themselves permanently to a hard substrate. Shown is a developed adult barnacle.

Barnacles

A barnacle is a type of arthropod belonging to infraclass Cirripedia in the subphylum Crustacean, and…

Cockroaches or roaches are insects of the order Blattaria. This name derives from the Latin word for "cockroach", blatta. Cockroaches live in a wide range of environments around the world. Pest species of cockroaches adapt readily to a variety of environments, but prefer warm conditions found within buildings. Many tropical species prefer even warmer environments and do not fare well in the average household. Roaches are not able to survive in moist areas such as bathrooms and are not able to exit such areas. This diagram shows a dissection of a cockroach with particular note of the allmentary canal (al).

Cockroach

Cockroaches or roaches are insects of the order Blattaria. This name derives from the Latin word for…

Carpenter bees are large, hairy bees distributed worldwide. Their name comes from the fact that nearly all species build their nests in burrows in dead wood, bamboo, or structural timbers. In several species, the females live in tunnels alongside their own daughters or sisters, creating a sort of social group. They use wood bits to form partitions between the cells in the nest. A few species bore holes in wood dwellings. Since the tunnels are near the surface, structural damage is generally minor or nonexistent.

Carpenter Bee

Carpenter bees are large, hairy bees distributed worldwide. Their name comes from the fact that nearly…

Marcus Antonius, known in English as Mark Antony, was a Roman politician and General. He was an important supporter and the best friend of Gaius Julius Caesar as a military commander and administrator, being Caesar's second cousin, once removed, by his mother Julia Antonia. After Caesar's assassination, Antony formed an official political alliance with Octavian (Augustus) and Marcus Aemilius Lepidus, known to historians today as the Second Triumvirate.

Bust of Mark Antony

Marcus Antonius, known in English as Mark Antony, was a Roman politician and General. He was an important…

Lucius Aurelius Commodus Antoninus (31 August 161 – 31 December 192) was a Roman Emperor who ruled from 180 to 192 (also with his father, Marcus Aurelius, from 177 until 180). The name given here was his official name at his accession to sole rule; see Changes of name for earlier and later forms. His accession as emperor was the first time a son had succeeded his father since Titus succeeded Vespasian in 79. Commodus was the first emperor "born to the purple"; i.e., born during his father's reign.

Bust of Commodus

Lucius Aurelius Commodus Antoninus (31 August 161 – 31 December 192) was a Roman Emperor who ruled…

Gobiesox reticulatus is a species of Clingfish, a bottom dwelling fish that live in shallow waters.

Clingfish

Gobiesox reticulatus is a species of Clingfish, a bottom dwelling fish that live in shallow waters.

Color flag of Canada. Two vertical bands of red (hoist and fly side, half width) with white square between them; an 11-pointed red maple leaf is centered in the white square; the official colors of Canada are red and white.

Flag of Canada, 2009

Color flag of Canada. Two vertical bands of red (hoist and fly side, half width) with white square between…

Black and white outline flag of Canada. Two vertical bands of red (hoist and fly side, half width) with white square between them; an 11-pointed red maple leaf is centered in the white square; the official colors of Canada are red and white

Flag of Canada, 2009

Black and white outline flag of Canada. Two vertical bands of red (hoist and fly side, half width) with…

Color flag of Cape Verde. Five unequal horizontal bands; the top-most band of blue - equal to one half the width of the flag - is followed by three bands of white, red, and white, each equal to 1/12 of the width, and a bottom stripe of blue equal to one quarter of the flag width; a circle of 10, yellow, five-pointed stars, each representing one of the islands, is centered on the red stripe and positioned 3/8 of the length of the flag from the hoist side. <p>Historically, the name "Cape Verde" has been used in English for the archipelago and, since independence in 1975, for the country. In 2013, the Cape Verdean government determined that the Portuguese designation "Cabo Verde" would henceforth be used for official purposes, such as at the United Nations, even in English contexts.

Flag of Cape Verde, 2009

Color flag of Cape Verde. Five unequal horizontal bands; the top-most band of blue - equal to one half…

Black and white outline flag of Cape Verde. Five unequal horizontal bands; the top-most band of blue - equal to one half the width of the flag - is followed by three bands of white, red, and white, each equal to 1/12 of the width, and a bottom stripe of blue equal to one quarter of the flag width; a circle of 10, yellow, five-pointed stars, each representing one of the islands, is centered on the red stripe and positioned 3/8 of the length of the flag from the hoist side. <p>Historically, the name "Cape Verde" has been used in English for the archipelago and, since independence in 1975, for the country. In 2013, the Cape Verdean government determined that the Portuguese designation "Cabo Verde" would henceforth be used for official purposes, such as at the United Nations, even in English contexts.

Flag of Cape Verde, 2009

Black and white outline flag of Cape Verde. Five unequal horizontal bands; the top-most band of blue…

Color flag of France. Three equal vertical bands of blue (hoist side), white, and red; known as the "Le drapeau tricolore" (French Tricolor), the origin of the flag dates to 1790 and the French Revolution; the design and/or colors are similar to a number of other flags, including those of Belgium, Chad, Ireland, Cote d'Ivoire, Luxembourg, and Netherlands; the official flag for all French dependent areas.

Flag of France, 2009

Color flag of France. Three equal vertical bands of blue (hoist side), white, and red; known as the…

Black and white outline flag of France. Three equal vertical bands of blue (hoist side), white, and red; known as the "Le drapeau tricolore" (French Tricolor), the origin of the flag dates to 1790 and the French Revolution; the design and/or colors are similar to a number of other flags, including those of Belgium, Chad, Ireland, Cote d'Ivoire, Luxembourg, and Netherlands; the official flag for all French dependent areas

Flag of France, 2009

Black and white outline flag of France. Three equal vertical bands of blue (hoist side), white, and…

Color flag of Malaysia. 14 equal horizontal stripes of red (top) alternating with white (bottom); there is a blue rectangle in the upper hoist-side corner bearing a yellow crescent and a yellow 14-pointed star; the crescent and the star are traditional symbols of Islam; the design was based on the flag of the US.

Flag of Malaysia, 2009

Color flag of Malaysia. 14 equal horizontal stripes of red (top) alternating with white (bottom); there…

Black and white outline flag of Malaysia. 14 equal horizontal stripes of red (top) alternating with white (bottom); there is a blue rectangle in the upper hoist-side corner bearing a yellow crescent and a yellow 14-pointed star; the crescent and the star are traditional symbols of Islam; the design was based on the flag of the US

Flag of Malaysia, 2009

Black and white outline flag of Malaysia. 14 equal horizontal stripes of red (top) alternating with…

Color flag of the United States. 13 equal horizontal stripes of red (top and bottom) alternating with white; there is a blue rectangle in the upper hoist-side corner bearing 50 small, white, five-pointed stars arranged in nine offset horizontal rows of six stars (top and bottom) alternating with rows of five stars; the 50 stars represent the 50 states, the 13 stripes represent the 13 original colonies; known as Old Glory; the design and colors have been the basis for a number of other flags, including Chile, Liberia, Malaysia, and Puerto Rico.

Flag of the United States, 2009

Color flag of the United States. 13 equal horizontal stripes of red (top and bottom) alternating with…

Black and white outline flag of the United States. 13 equal horizontal stripes of red (top and bottom) alternating with white; there is a blue rectangle in the upper hoist-side corner bearing 50 small, white, five-pointed stars arranged in nine offset horizontal rows of six stars (top and bottom) alternating with rows of five stars; the 50 stars represent the 50 states, the 13 stripes represent the 13 original colonies; known as Old Glory; the design and colors have been the basis for a number of other flags, including Chile, Liberia, Malaysia, and Puerto Rico

Flag of the United States, 2009

Black and white outline flag of the United States. 13 equal horizontal stripes of red (top and bottom)…

Color flag of Wallis and Futuna. Unofficial, local flag has a red field with four white isosceles triangles in the middle, representing the three native kings of the islands and the French administrator; the apexes of the triangles are oriented inward and at right angles to each other; the flag of France, outlined in white on two sides, is in the upper hoist quadrant; the flag of France is the only official flag.

Flag of Wallis and Futuna, 2009

Color flag of Wallis and Futuna. Unofficial, local flag has a red field with four white isosceles triangles…

Black and white outline flag of Wallis and Futuna. Unofficial, local flag has a red field with four white isosceles triangles in the middle, representing the three native kings of the islands and the French administrator; the apexes of the triangles are oriented inward and at right angles to each other; the flag of France, outlined in white on two sides, is in the upper hoist quadrant; the flag of France is the only official flag

Flag of Wallis and Futuna, 2009

Black and white outline flag of Wallis and Futuna. Unofficial, local flag has a red field with four…

In Norse mythology, Nornagesta was fated by the three Norns: Urd, Verdandi, and Skuld. Urd and Verdandi gave him a rich, heroic life. Skuld said he would live no longer than a burning candle. Nornagesta kept the candle safe and hidden and lived to be 300 years old. King Olaf found the candle, burned it, and Nornagesta died.

Olaf and Nornagesta

In Norse mythology, Nornagesta was fated by the three Norns: Urd, Verdandi, and Skuld. Urd and Verdandi…

Mackerel is a common name applied to a number of different species of fish, mostly, but not exclusively, from the family Scombridae. They occur in all tropical and temperate seas. Most live offshore in the oceanic environment but a few, like the Spanish mackerel (Scomberomorus maculatus), enter bays and can be caught near bridges and piers. Common features of mackerels are a slim, cylindrical shape (as opposed to the tunas which are deeper bodied) and numerous finlets on the dorsal and ventral sides behind the dorsal and anal fins.

Mackerel

Mackerel is a common name applied to a number of different species of fish, mostly, but not exclusively,…

The Common Mudpuppy (Necturus maculosus) is a species of aquatic salamander found throughout the northeastern United States, and parts of Canada. Mudpuppies prefer shallow water with many places to hide, but have been found at depths of up to 90 feet. The mating season is late autumn, however eggs are not laid until late spring when 50 to 100 eggs are deposited in a nest cavity under a rock or other object. It takes 1 to 2 months for the eggs to hatch and 4 to 6 years for the young to reach maturity. Mudpuppies may live for up to 20 years.

Common Mudpuppy

The Common Mudpuppy (Necturus maculosus) is a species of aquatic salamander found throughout the northeastern…

"A certain originality and freedom of intervention is perceptible in the buildings of the early period of the Venetian Renaissance style; the old style is happily blended with the new, which during the first stage is still imbued with Romanesque conceptions." The Vendramin were a rich merchant family of Venice, Italy. What is now the most prominent "Palazzo Vendramin" in Venice, the splendid Ca' Vendramin Calergi by Mauro Codussi on the Grand Canal, was in fact only inherited by the family in 1739, and is now the casino, also famous as the place where Richard Wagner died in 1883. Some rooms are kept as a museum commemorating Wagner's stay. The 16th century Ca' Vendramin di Santa Fosca in the Cannaregio quarter, now also a hotel, is where Gabriele Vendramin's collection was housed. Yet another is the 16th or possibly 17th century "Palazzo Vendramin dei Carmini", in Dorsoduro, most of which is now occupied by part of the University of Venice.

Vendramin Palace at Venice

"A certain originality and freedom of intervention is perceptible in the buildings of the early period…

A time clock, sometimes known as a clock card machine or punch clock or time recorder, is a mechanical timepiece used to assist in tracking the hours an employee of a company worked. In regards to mechanical time clocks this was accomplished by inserting a heavy paper card, called a time card, into a slot on the time clock. When the time card hit a contact at the rear of the slot, the machine would print day and time information on the card. This allowed a timekeeper to have an official record of the hours an employee worked to calculate and pay an employee.

Workman's Time Recorder

A time clock, sometimes known as a clock card machine or punch clock or time recorder, is a mechanical…

"The cylinder covers are also made hollow to permit a circulation of live steam. A cylinder having the annular space (A) filled with steam is said to be jacketed. A liner, L, is often used in jacketed cylinders." &mdash;Derr, 1911

Jacketing Piston to Reduce Heat Loss

"The cylinder covers are also made hollow to permit a circulation of live steam. A cylinder having the…

An illustration of Notre Dame Cathedral in Paris, France. This building is also known as Notre Dame de Paris which is French for Our Lady of Paris. It is the church which contains the official chair of the Archbishop of Paris.

Notre Dame Cathedral

An illustration of Notre Dame Cathedral in Paris, France. This building is also known as Notre Dame…

A watch that is carried in a small watch pocket

Pocket Watch

A watch that is carried in a small watch pocket

"The larvae of [Saperda populena] live in gall-like swellings in the branches [of poplar]."&mdash;Nicholson, 1884

Saperda Populena

"The larvae of [Saperda populena] live in gall-like swellings in the branches [of poplar]."—Nicholson,…

"The power of speaking to the eyes and heart, / Is great; and is indeed a wondrous art; / It mighty proves; it scorns the tyrant's power, / And will remain extant till earth's last hour: / And useful book may live from age to age, / And those unborn, may read its printed page."&mdash;Barber, 1857

Good Books Create Knowledge, Virtue, and Happiness

"The power of speaking to the eyes and heart, / Is great; and is indeed a wondrous art; / It mighty…

"More than to eat, the hog does not aspire; / To get and cram his food, he looks no higher, / Like men who only live to eat and drink, / Of Him who feeds us all they never think: / They heed not, they love not Him who dwells on high. / Like brutes they live, like brutish beasts they die - / The source of life, of hope, and heavenly love, / They care not for, they never look above."&mdash;Barber, 1857

The Hog Never Looks Higher than His Head

"More than to eat, the hog does not aspire; / To get and cram his food, he looks no higher, / Like men…

The mace is carried in order to represent an official's authority.

House of Commons Mace

The mace is carried in order to represent an official's authority.

A Russian citadel, which includes four palaces, four cathedrals, and the Kremlin towers. It is the official residence of the President of Russia.

The Kremlin

A Russian citadel, which includes four palaces, four cathedrals, and the Kremlin towers. It is the official…

The official seal of colonial Connecticut in 1635.

Seal of Connecticut

The official seal of colonial Connecticut in 1635.

The official seal of colonial Rhode Island in 1636.

Seal of Rhode Island

The official seal of colonial Rhode Island in 1636.

The official U.S. state seal of Vermont.

Seal of Vermont

The official U.S. state seal of Vermont.

The official U.S. state seal of Ohio.

Seal of Ohio

The official U.S. state seal of Ohio.

The official seal of the U.S. state of Alabama.

Seal of Alabama

The official seal of the U.S. state of Alabama.

The official seal of the U.S. state of Minnesota.

Seal of Minnesota

The official seal of the U.S. state of Minnesota.

The official U.S. state seal of West Virginia.

Seal of West Virginia

The official U.S. state seal of West Virginia.

The official state seal of Colorado.

Seal of Colorado

The official state seal of Colorado.

The official currency of the United Kingdom.

The Pound Sterling

The official currency of the United Kingdom.

The official seal of Sir Thomas Lucy, a magistrate who persecuted recusant Catholic families. The seal consists of three white luces interlaced.

Seal of Sir Thomas Lucy

The official seal of Sir Thomas Lucy, a magistrate who persecuted recusant Catholic families. The seal…

The official coronet of a viscount, a member of the European nobility.

Viscount's Coronet

The official coronet of a viscount, a member of the European nobility.

The official coronet of a European baron.

Baron's Coronet

The official coronet of a European baron.

A rare breed of cattle that live in a large enclosed part at Chillingham Castle in England.

Chillingham Bull

A rare breed of cattle that live in a large enclosed part at Chillingham Castle in England.

Also known as Quercus wislizeni. The branch of an Interior Live Oak tree, native to California.

Branch of Interior Live Oak

Also known as Quercus wislizeni. The branch of an Interior Live Oak tree, native to California.

Also known as Quercus agrifolia. The branch of a Coast Live Oak, native to the California Floristic Province.

Branch of Coast Live Oak

Also known as Quercus agrifolia. The branch of a Coast Live Oak, native to the California Floristic…

Also known as Quercus chrysolepis. The branch of a Canyon Live Oak tree, native to the southwestern North America.

Branch of Canyon Live Oak

Also known as Quercus chrysolepis. The branch of a Canyon Live Oak tree, native to the southwestern…

Also known as Quercus virginiana. The branch of a Southern Live Oak tree, native to the southeastern United States.

Branch of Southern Live Oak

Also known as Quercus virginiana. The branch of a Southern Live Oak tree, native to the southeastern…

Ichneumon flies deposit their eggs upon the bodies of other insects and larva. The larva live on the interior of their host.

Ichneumon Fly

Ichneumon flies deposit their eggs upon the bodies of other insects and larva. The larva live on the…

Thrips are very small insects that live in flowers. Thrips gnaw the surface of petals.

Magnified Thrips

Thrips are very small insects that live in flowers. Thrips gnaw the surface of petals.

The larva of the onion fly are maggots or footless grubs. Many live in the interior of roots, stems, or leaves of plants.

Larva and Chrysalis of the Onion Fly

The larva of the onion fly are maggots or footless grubs. Many live in the interior of roots, stems,…

The larvae of crane flies are known as grubs and leather jackets. The gnats live in water during their larval condition.

Crane Fly

The larvae of crane flies are known as grubs and leather jackets. The gnats live in water during their…

The larvae of the lily beetle live on lilies, devouring their leaves. The antennae are on the front of the head of the beetle.

Eggs, Larvae, and Perfect Insect of the Lily Beetle

The larvae of the lily beetle live on lilies, devouring their leaves. The antennae are on the front…

When clear wing moths are larvae they live in burrows, in the roots and stems of many plants, and often do considerable damage.

Clear Wing Moth

When clear wing moths are larvae they live in burrows, in the roots and stems of many plants, and often…

Turnip moth is the common name of agrotis segetum. The caterpillars live on turnip roots, harming the plants.

Caterpillar of Turnip Moth

Turnip moth is the common name of agrotis segetum. The caterpillars live on turnip roots, harming the…

The larva of psylla pyrisuga live on pear trees and sometimes apple trees. The larvae suck the juice from the leaves.

Larva of Psylla Pyrisuga

The larva of psylla pyrisuga live on pear trees and sometimes apple trees. The larvae suck the juice…