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"It is not dangerous to man, but its sting kills the ox, the horse, the sheep and the dog, and renders the countries of Central Africa uninhabitable for those animals."

The Tsetse-Fly (Glossina Morsitans)

"It is not dangerous to man, but its sting kills the ox, the horse, the sheep and the dog, and renders…

"It is not dangerous to man, but its sting kills the ox, the horse, the sheep and the dog, and renders the countries of Central Africa uninhabitable for those animals."

Head of Tsetse-Fly (Glossina Morsitans)

"It is not dangerous to man, but its sting kills the ox, the horse, the sheep and the dog, and renders…

"By means of its disguise, it can approach little animals which become its prey, such as flies, spiders and small bugs."

Pupa of Reduvious Personatus, Covered with its Cloak of Dust

"By means of its disguise, it can approach little animals which become its prey, such as flies, spiders…

"By means of its disguise, it can approach little animals which become its prey, such as flies, spiders and small bugs."

Pupa of Reduvious Personatus, Denuded of its Cloak of Dust

"By means of its disguise, it can approach little animals which become its prey, such as flies, spiders…

Cattle pictured standing and laying on the ground.

Cattle

Cattle pictured standing and laying on the ground.

An illustration of the front of a Pennsylvanian barn.

The Pennsylvanian barn

An illustration of the front of a Pennsylvanian barn.

An illustration of the end elevation of a Pennsylvanian barn.

The Pennsylvanian barn

An illustration of the end elevation of a Pennsylvanian barn.

The floor plan for the basement of a Pennsylvanian barn.

The Pennsylvanian barn

The floor plan for the basement of a Pennsylvanian barn.

The frame work of a Pennsylvanian barn.

The Pennsylvanian barn frame work

The frame work of a Pennsylvanian barn.

The frame work of a Pennsylvanian barn.

The Pennsylvanian barn frame work

The frame work of a Pennsylvanian barn.

"These insects often feed upon matter in a state of putrefaction. They are nature's undertakers. A great number live on the skins and flesh of dried animals; some attack roots, bark, wood, leaves and fruits."

Cetonia Argentea

"These insects often feed upon matter in a state of putrefaction. They are nature's undertakers. A great…

"This represents the Goliaths. These insects often feed upon matter in a state of putrefaction. They are nature's undertakers. A great number live on the skins and flesh of dried animals; some attack roots, bark, wood, leaves and fruits."

Goliathus Derbyana

"This represents the Goliaths. These insects often feed upon matter in a state of putrefaction. They…

"This represents the Goliaths. These insects often feed upon matter in a state of putrefaction. They are nature's undertakers. A great number live on the skins and flesh of dried animals; some attack roots, bark, wood, leaves and fruits."

Goliathus Polyphemus

"This represents the Goliaths. These insects often feed upon matter in a state of putrefaction. They…

"This represents the Goliaths. These insects often feed upon matter in a state of putrefaction. They are nature's undertakers. A great number live on the skins and flesh of dried animals; some attack roots, bark, wood, leaves and fruits. The male of the Goliaths, found on the coast of Guiana."

Goliathus Cacicus (Male)

"This represents the Goliaths. These insects often feed upon matter in a state of putrefaction. They…

"They introduce themselves under the skin of the carcasses of animals, and devour their flesh to the bone. [This] species climbs trees and attacks caterpillars."

Dung Beetle (Silpha Quadrapunctata)

"They introduce themselves under the skin of the carcasses of animals, and devour their flesh to the…

"They introduce themselves under the skin of the carcasses of animals, and devour their flesh to the bone. [This] species climbs trees and attacks caterpillars."

Silpha Thoracica

"They introduce themselves under the skin of the carcasses of animals, and devour their flesh to the…

"They introduce themselves under the skin of the carcasses of animals, and devour their flesh to the bone."

Necrodes Littoralis (Female)

"They introduce themselves under the skin of the carcasses of animals, and devour their flesh to the…

A species of goose necked barnacles, a crustacean known for attaching itself to objects and other animals.

Goose Necked Barnacle

A species of goose necked barnacles, a crustacean known for attaching itself to objects and other animals.

"They introduce themselves under the skin of the carcasses of animals, and devour their flesh to the bone." This one is native to Australia.

Necrodes Lacrymosa

"They introduce themselves under the skin of the carcasses of animals, and devour their flesh to the…

"This specimen lives in the carcasses of animals, on manure, and attacks living insects. It is a carnivorous, and very active, often attacking insects of its own kind."

Imago of Staphylinus (Ocypus) Olens

"This specimen lives in the carcasses of animals, on manure, and attacks living insects. It is a carnivorous,…

"This specimen lives in the carcasses of animals, on manure, and attacks living insects. It is a carnivorous, and very active, often attacking insects of its own kind."

Larva of Staphylinus (Ocypus) Olens

"This specimen lives in the carcasses of animals, on manure, and attacks living insects. It is a carnivorous,…

"The pores of sponges are of two kinds, the larger ones called 'oscula'" and the smaller distinguished as 'pores.' In the living state of the sponge, water is being constantly absorbed by the pores, while currents of water will be seen issuing from the oscula."

Sponge Attached to its Rocky Bed

"The pores of sponges are of two kinds, the larger ones called 'oscula'" and the smaller distinguished…

"These little creatures frequently have the appearance of small, rounded masses, like drops of water. They are naked, without any apparent organization."

Amoeba Princeps (Ehrenberg)

"These little creatures frequently have the appearance of small, rounded masses, like drops of water.…

"The Foraminifera are enclosed in minute calcareous shells, early invisible to the naked eye; they are found among the sands of the sea. The, in common with corals, are great agents in helping to form islands, which rise out of the bosom of the deep in the warm regions of the globe."

Calcarina Calcitrpoides (Lamarck)

"The Foraminifera are enclosed in minute calcareous shells, early invisible to the naked eye; they are…

"The Foraminifera are enclosed in minute calcareous shells, early invisible to the naked eye; they are found among the sands of the sea. The, in common with corals, are great agents in helping to form islands, which rise out of the bosom of the deep in the warm regions of the globe."

Fabularia Discolithus (Defrance)

"The Foraminifera are enclosed in minute calcareous shells, early invisible to the naked eye; they are…

"The Foraminifera are enclosed in minute calcareous shells, early invisible to the naked eye; they are found among the sands of the sea. The, in common with corals, are great agents in helping to form islands, which rise out of the bosom of the deep in the warm regions of the globe."

Alveolina Ovoidea (d'Orbigny)

"The Foraminifera are enclosed in minute calcareous shells, early invisible to the naked eye; they are…

"The shell advances beyond this simple type by a process of linear budding, the first cell being spherical, with an opening through which a second segment is formed, generally a little larger than the first. This new growth is followed by others developed in the same way, until the organism attains its maturity."

Dentalina Subarcuata

"The shell advances beyond this simple type by a process of linear budding, the first cell being spherical,…

One group will take the spherical form and produce a shell in the shape of the nautilus. In this case, all the convolutions are visible.

Operculina

One group will take the spherical form and produce a shell in the shape of the nautilus. In this case,…

One group will take the spherical form and produce a shell in the shape of the nautilus. In this case, the external convolutions conceal those previously formed.

Nummulina Perforta

One group will take the spherical form and produce a shell in the shape of the nautilus. In this case,…

One group will take the spherical form and produce a shell in the shape of the nautilus. In this case, the shell is spiral, with the chamber equilateral, with a larger and smaller side.

Cassidulina Laevigata

One group will take the spherical form and produce a shell in the shape of the nautilus. In this case,…

One group will take the spherical form and produce a shell in the shape of the nautilus. In this case, the new segments are arranged alternately on opposite sides of the central line.

Textularia Variabilis

One group will take the spherical form and produce a shell in the shape of the nautilus. In this case,…

One group will take the spherical form and produce a shell in the shape of the nautilus. Some are more or less oblong, each new segment being nearly equal to the entire length of the shell.

Spiroloculina Depressa

One group will take the spherical form and produce a shell in the shape of the nautilus. Some are more…

One group will take the spherical form and produce a shell in the shape of the nautilus. Some are more or less oblong, each new segment being nearly equal to the entire length of the shell.

Rotalia

One group will take the spherical form and produce a shell in the shape of the nautilus. Some are more…

The body is enclosed in a glassy shell composed of flint. The shell is perforated by numerous holes through which the pseudopodia are emitted, and it is usually of extreme beauty, being sculptured in various ways, and often adorned with spines.

Haliomma Hexacanthum

The body is enclosed in a glassy shell composed of flint. The shell is perforated by numerous holes…

"The singular phenomenon of spontaneous division may be witnessed by any one having patience to examine the creature long enough under the microscope, isolated from its innumerable companions. This process is represented here, A and B being the adult, C the same in course of separation, D after its completion."

Propagation of an Infusorian by Spontaneous Division

"The singular phenomenon of spontaneous division may be witnessed by any one having patience to examine…

In this image, (a) represents the parasites in the various stages of development, and (b), the larger animalcule on which they have established themselves.

Paramecium Aurelia and its Parasites

In this image, (a) represents the parasites in the various stages of development, and (b), the larger…

"The common Volvox is found in great abundance during the summer, and even in the depth of winter in lakes and ponds of fresh water."

Volvox Globular

"The common Volvox is found in great abundance during the summer, and even in the depth of winter in…

"The common Volvox is found in great abundance during the summer, and even in the depth of winter in lakes and ponds of fresh water."

Volvox Globular

"The common Volvox is found in great abundance during the summer, and even in the depth of winter in…

"The Monads are infusorial animalcules which make an early appearance in vegetable infusions. They have no skin; the substance of their bodies can shorten itself or draw itself out more or less; their organization is extremely simple."

Monas Lens

"The Monads are infusorial animalcules which make an early appearance in vegetable infusions. They have…

"This is the most common species of the <em>Euglenia</em>, and is among the most widely diffused of all the Infusioria. It is this animalcule which is often met with covering stagnant pools with a floating surface of green."

Euglena Viridis

"This is the most common species of the Euglenia, and is among the most widely diffused of…

"Paramecium Bursaria is the only species of Paramecium that forms symbiotic relationships with algae, and are often used in biology classrooms as examples of protozoans, and as examples of symbiosis."

Paramecium Bursaria (Pritchard)

"Paramecium Bursaria is the only species of Paramecium that forms symbiotic relationships with algae,…

Related to the Paramecians. These are remarkable for their size and voracity; they sometimes attain the length of a twelfth of an inch.

Kondylostoma Patens

Related to the Paramecians. These are remarkable for their size and voracity; they sometimes attain…

"The <em>Porpitae</em> consist of colonies of floating animals furnished with a cartilaginous, horizontal and rounded skeleton, but they are destitute of crest or veil."

Porpita Pacifica

"The Porpitae consist of colonies of floating animals furnished with a cartilaginous, horizontal…

The chicken is a domesticated fowl which is commonly used from its meat and eggs.

Chicken

The chicken is a domesticated fowl which is commonly used from its meat and eggs.

An illustration of a mother chick overlooking her baby chicks.

Chicken and Chicks

An illustration of a mother chick overlooking her baby chicks.

An illustration of a mother chick surrounded by her baby chicks.

Chicken and Chicks

An illustration of a mother chick surrounded by her baby chicks.

"The Blue Minyad is a type of a family in which the base of the body, in place of extending itself in a disk-like form, in order to grapple with the rocks and other projections at the bottom of the sea, turns itself inward, forming a sort of purse, which seems to imprison the air. From this results a sort of hydrostatic apparatus, aided by which the animals can float in the water and transport themselves from one place to another."

Blue Minyad (Minyas Cyanea)

"The Blue Minyad is a type of a family in which the base of the body, in place of extending itself in…

"The whole internal cavity in these animals is occupied by little, white tubes. The mouth opens at the extremity of the body; it forms a sort of funnel, surrounded like a crown with an elegant circle of tentacula."

Cristatella Mucedo (Cuvier)

"The whole internal cavity in these animals is occupied by little, white tubes. The mouth opens at the…

Ascidia Podunculata (Milne-Edwards) "The Tunicata would not probably by taken for animals at first sight. They have neither arms, nor head, nor feet; but then they have a mouth, placed at the entrance of a digestive tube. It is a single ganglion, connected with divers small threads."

Social Tunicates

Ascidia Podunculata (Milne-Edwards) "The Tunicata would not probably by taken for animals at first sight.…

An adult male leaning on the bottom of a Dutch door standing at the entrance of a barn.

Man in Barn

An adult male leaning on the bottom of a Dutch door standing at the entrance of a barn.

Group of animals gathered at a water trough.

Animals

Group of animals gathered at a water trough.

An illustration of a barn filled with animals, including: cows, a rooster, a horse, lambs, and birds.

Barn Full of Animals

An illustration of a barn filled with animals, including: cows, a rooster, a horse, lambs, and birds.

An elephant chasing and attacking a horse-drawn carriage.

Elephant and Carriage

An elephant chasing and attacking a horse-drawn carriage.

From Kipling's The Jungle Book, Baloo singing the Law of the Jungle to a pack of wolves.

Baloo Singing to Wolves

From Kipling's The Jungle Book, Baloo singing the Law of the Jungle to a pack of wolves.

An illustration of a horse-drawn street car. The first passenger services in the world were started by the Oystermouth Railway in Wales, using specially designed carriages on an existing tram line built for horse-drawn freight dandies. Fare-paying passengers were carried on a line between Oystermouth, Mumbles and Swansea docks from 1807. Other forms of public transit developed out of the early omnibus that first ran on public streets in the 1820s. These were local versions of the stagecoach lines, and picked up and dropped off passengers on a regular route, without the need to be pre-hired. Horsecars on tram lines were an improvement over the omnibus as the low rolling resistance of metal wheels on iron or steel rails, (usually grooved from 1852 on), allowed the animals to haul a greater load for a given effort than the omnibus. The horse-drawn streetcar combined the low cost, flexibility, and safety of animal power with the efficiency, smoothness, and all-weather capability of a rail right-of-way.

Street Car

An illustration of a horse-drawn street car. The first passenger services in the world were started…

The tiger beetles are a large group of beetles known for their predatory habits. Some tiger beetles can run at a speed of 5 mph. For its size it has been suggested that they are technically the fastest running land animals. This has been featured on "Animal Planet's Most Extreme" show as the number one fastest animal known to man on earth.

Tiger Beetle

The tiger beetles are a large group of beetles known for their predatory habits. Some tiger beetles…

The Meadow Vole (Microtus pennsylvanicus), sometimes called the Field Mouse or Meadow Mouse, is a small North American vole found across Canada, Alaska and the northern United States. Its range extends further south along the Atlantic coast. One subspecies, the Florida Salt Marsh Vole, is found in Florida, and is classified as endangered. The Meadow Vole is active year-round, usually at night. It also digs underground burrows where it stores food for the winter and females give birth to their young. Although these animals tend to live close together, they are aggressive towards one other. This is particularly evident in males during the breeding season. It can cause damage to fruit trees, garden plants and commercial grain crops.

Field Mouse

The Meadow Vole (Microtus pennsylvanicus), sometimes called the Field Mouse or Meadow Mouse, is a small…

Centipedes are arthropods belonging to the class Chilopoda and the Subphylum Myriapoda. They are elongated metameric animals with one pair of legs per body segment. A key trait uniting this group is a pair of venom claws or forcipules formed from a modified first appendage. This also means that centipedes are an exclusively predatory taxon, which is uncommon.

Centipede

Centipedes are arthropods belonging to the class Chilopoda and the Subphylum Myriapoda. They are elongated…

Cheese flies are members of the family Piophilidae of flies (Diptera), including the members of two now-obsolete families, Neottiophilidae and Thyreophoridae. Most are scavengers in animal products and fungi. The best-known member of the family is Piophila casei. It is a small fly, about four mm (1/6 inch) long, found worldwide. The fly's larva infests cured meats, smoked fish, cheeses, and decaying animals. The larva is about 8 mm (1/3 inch) long and is sometimes called the cheese skipper for its leaping ability - when disturbed, this tiny maggot can hop up to 15 cm (6 inches) into the air. Adults are also known as "bacon flies" and their larvae as "bacon skippers", "ham skippers", "cheese maggots", and "cheese hoppers". In Sardinia, Italy the larvae are intentionally introduced into pecorino cheese to produce casu marzu.

Cheese Fly Larva

Cheese flies are members of the family Piophilidae of flies (Diptera), including the members of two…

An illustration of an earwig larva. Earwigs is the common name given to the insect order Dermaptera characterized by membranous wings folded underneath short leathery forewings (hence the literal name of the order&mdash;"skin wings"). The abdomen extends well beyond the wings, and frequently, though not always, ends in a pair of forceps-like structures termed cerci. The order is relatively small among Insecta, with about 1,800 recorded species in 10 families. Earwigs are, however, quite common globally. There is no evidence that they transmit disease or otherwise harm humans or other animals, despite their nickname pincher bug.

Earwig Larva

An illustration of an earwig larva. Earwigs is the common name given to the insect order Dermaptera…