ClipArt ETC
La Roche bore Three roach swimming.

Roche

La Roche bore Three roach swimming.

Vorticella is a protozoan. Except for when young, it is usually found attached to dead leaves or sticks throughout its life. This shows free-swimming individuals conjugating with a large, stalked individual.

Vorticella

Vorticella is a protozoan. Except for when young, it is usually found attached to dead leaves or sticks…

A free-swimming jellyfish of the Class Scyphozoa.

Jellyfish

A free-swimming jellyfish of the Class Scyphozoa.

Flounder keep near the bottom, swimming on one side, and the two eyes are both on the side that is uppermost.

Flounder

Flounder keep near the bottom, swimming on one side, and the two eyes are both on the side that is uppermost.

Diving birds, such as the grebe, have webbed (or lobed) feet and are expert in swimming and diving.

Grebe

Diving birds, such as the grebe, have webbed (or lobed) feet and are expert in swimming and diving.

Rotifers are free-swimming pseudo-coelomates. They occur in freshwater and are easily examined because they are transparent.

Rotifer

Rotifers are free-swimming pseudo-coelomates. They occur in freshwater and are easily examined because…

A large marine swimming bird. The bill is straight and strong, the upper mandible hooked at the point and the lower one truncated; there are three webbed toes on each foot.

Albatross

A large marine swimming bird. The bill is straight and strong, the upper mandible hooked at the point…

Penguins are adopted for a completely aquatic life. The body is boat-shaped, the neck long, and legs short and placed behind the point of equilibrium of the body.

Penguin

Penguins are adopted for a completely aquatic life. The body is boat-shaped, the neck long, and legs…

Gulliver brings in the drifting boat.

Gulliver

Gulliver brings in the drifting boat.

A sea gull swimming.

Sea Gull

A sea gull swimming.

"Is about the size of a rat.. Their legs are of equal length, and terminate into five toes, which are armed with small claws, usually free, thugh not fequently united by a swimming membrane. Their nose is more or less produced, and the tail is elongated, usually tapering, covered with scales." —Goodrich, 1885

Shrews

"Is about the size of a rat.. Their legs are of equal length, and terminate into five toes, which are…

"Resembles the otters, having palmated feet, and swimming with facility." — S. G. Goodrich, 1885

Yayock

"Resembles the otters, having palmated feet, and swimming with facility." — S. G. Goodrich, 1885

"A fish may be defined as a Vertibrate animal breathing through the medium of water, by means of branchiae, or gills, having one auricle and one ventricle to the heart, cold red blood, and extremities formed for swimming" — Goodrich, 1859

Pisces

"A fish may be defined as a Vertibrate animal breathing through the medium of water, by means of branchiae,…

"The descriptions of it are very obscure; it appears to be destitute of shell, the body globular, the lower part having an oval space, circumscribed by thick lips; the animal is furnished with curious swimming and branchial appendages." — Goodrich, 1859

Leach's bursatella

"The descriptions of it are very obscure; it appears to be destitute of shell, the body globular, the…

"The animals belonging to this order, of which the <em>Common Leech</em> is a familiar example, are characterized by the total deficiency of any lateral appendages, their motions being effected by undulations of the body while swimming, or by the alternate attachment of the sucking discs with which the two extremities of their bodies are usually furnished." &mdash; Goodrich, 1859

Leech

"The animals belonging to this order, of which the Common Leech is a familiar example, are…

"Argonauta argo (female), swimming in the direction of the large arrow- the smaller showing the current from the siphon."-Whitney, 1902

Argonauta argo

"Argonauta argo (female), swimming in the direction of the large arrow- the smaller showing the current…

"Water Flea is a popular name for minute aquatic Crustaceans such as daphnia, cypris, and cyclops. In Cyclops the body is more distinctly segmented and the shell is not bivalve; the head bears antenn&aelig;, mandibles, and maxill&aelig;, and the first five segments of the thorax bear swimming appendages. Water fleas fed on microscopic plants and animals and on organic debris, while they themselves&ndash; often occurring in countless swarms&ndash; form an important part of the food supply of certain fishes."&mdash;(Charles Leonard-Stuart, 1911)

Cyclops communis Water Flea

"Water Flea is a popular name for minute aquatic Crustaceans such as daphnia, cypris, and cyclops. In…

"Water Flea is a popular name for minute aquatic Crustaceans such as daphnia, cypris, and cyclops. In Cypris also the shell is bivalve; there are five pairs of appendages on the head and two on the body; most of these are used in swimming or creeping. Among cyprids parthenogenesis again occurs, and in some species males have never been observed, while parthenogenetic development has been traced for as many as 40 successive generations. The females bear large egg sacs. Water fleas fed on microscopic plants and animals and on organic debris, while they themselves&ndash; often occurring in countless swarms&ndash; form an important part of the food supply of certain fishes."&mdash;(Charles Leonard-Stuart, 1911)

Cypris Unifasciata Water Flea

"Water Flea is a popular name for minute aquatic Crustaceans such as daphnia, cypris, and cyclops. In…

"Water Flea is a popular name for minute aquatic Crustaceans such as daphnia, cypris, and cyclops. The common Daphnia pulex, abundant in fresh water, is a good representative. The body is enclosed in a bivalve shell; there is a large single eye; a pair of large antenn&aelig; are used as swimming organs. The daphnids are marvellously prolific, and for prolonged periods parthenogenetic. There is an interesting difference between the winter eggs which require fertilization and the summer eggs which do not. The females have a dorsal brood chamber betwen the shell and the back. Water fleas fed on microscopic plants and animals and on organic debris, while they themselves&ndash; often occurring in countless swarms&ndash; form an important part of the food supply of certain fishes."&mdash;(Charles Leonard-Stuart, 1911)

Daphnia Pulex Water Flea

"Water Flea is a popular name for minute aquatic Crustaceans such as daphnia, cypris, and cyclops. The…

Baby swimming with the dog

Baby and Dog

Baby swimming with the dog

Ducks swimming in the water.

Ducks

Ducks swimming in the water.

Seven ducks swimming

Seven Ducks

Seven ducks swimming

"Menander was an Athenian, and was born in B.C. 342. He was drowned at the age of 52, whilst swimming in the harbour of Piraeus. He wrote upwards of 100 comedies, of which only fragments remain; and the unanimous praise of posterity awakens our regret for the loss of one fo the most elegant writers of antiquity." &mdash; Smith, 1882

Menander

"Menander was an Athenian, and was born in B.C. 342. He was drowned at the age of 52, whilst swimming…

Image from the story, <em>The Castaways</em>. Jake seized Ben by the shoulders to prevent him from swimming for the boat.

Castaways

Image from the story, The Castaways. Jake seized Ben by the shoulders to prevent him from swimming…

Penguins vary much in size, the King Penguin of the Antarctic Seas being the largest. They all have very short legs, no wings, but a couple of paddles which assist them greatly in swimming.

Penguin

Penguins vary much in size, the King Penguin of the Antarctic Seas being the largest. They all have…

A class of carnivorous mammals of the weasel family, which includes about twenty species that vary greatly in size. The common otter measures a little over two feet from nose to tail. It has a tail about fifteen inches long, soft fr of a brownish color, webbed feet adapted for swimming, and weighs about twenty pounds. Otters are found along the shores and streams and lakes, where they construct holes and channels through the ground, and subsist by feeding on fish, small birds, frogs, and other aquatic animals.

Otter

A class of carnivorous mammals of the weasel family, which includes about twenty species that vary greatly…

The general name of certain genera of carnivorous mammals, havin feet adapted for swimming, and being able to live both in and out of water.

Seal

The general name of certain genera of carnivorous mammals, havin feet adapted for swimming, and being…

Small, swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world in both fresh and salt water.

Shrimp

Small, swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world…

The first free-swimming larval stage of crustaceans.

Zoea

The first free-swimming larval stage of crustaceans.

A snail approaching bugs swimming at the waters edge.

Snail

A snail approaching bugs swimming at the waters edge.

"A, a hydriform person giving rise to medusiform persons by budding from the margin of the disc; B, free swimming medusa (Steenstrupia of Forbes) detached from the same, with manubrial genitalia (Anthomedusae) and only one tentacle." &mdash; Encyclopedia Britannica, 1893

Corymorpha

"A, a hydriform person giving rise to medusiform persons by budding from the margin of the disc; B,…

"Diagram of a colony of Campanularia, showing four forms of persons. A, portion of a fixed colony; a, hydriform person; b, bud-bearing hydriform person (blastostyle); B, free-swimming colony, being sexless medusiform person (blastoscheme of Allmen), with modified medusiform persons budding from its radiating canals, as sporosacs." &mdash; Encyclopedia Britannica, 1893

Campanularia

"Diagram of a colony of Campanularia, showing four forms of persons. A, portion of a fixed colony; a,…

"Diagram showing possible modifications of medusiform and hydriform persons of a colony of Siphonophora. n, pneumatocyst; k, nectocalyces (swimming bells); l, hydrophyllium (covering-piece); i, generative medusiform person; g, dactylozooid with attached tentacle, h; e, nutritive hydriform person, with branched grappling tentacle, f; m, stem. The thick black line represents endoderm, the thinner line ectoderm." &mdash; Encyclopedia Britannica, 1893

Siphonophora

"Diagram showing possible modifications of medusiform and hydriform persons of a colony of Siphonophora.…

Sergeant Champe escaping by horseback and swimming.

Sergeant Champe

Sergeant Champe escaping by horseback and swimming.

Waves are swimming motions of the water, caused by the action of the wind. Their height and velocity deepen on the forces of the wind, and depth of the basin in which they occur. The stronger the wind, and the deeper the ocean, the higher the waves and the greater their velocity.

Ocean Wave

Waves are swimming motions of the water, caused by the action of the wind. Their height and velocity…

The whirligig beetles are a family (Gyrinidae) of water beetles that normally live on the surface of the water. They get their common name from their habit of swimming rapidly in circles when alarmed, and are also notable for their divided eyes which can see both above and below water.

Whirligig Beetle Larva

The whirligig beetles are a family (Gyrinidae) of water beetles that normally live on the surface of…

Illustration of a swimming pool and water hose that is in the shape of a hollow regular decagonal prism with regular decagons on the ends/bases and square faces.

Swimming Pool Shaped Like A Decagonal Prism

Illustration of a swimming pool and water hose that is in the shape of a hollow regular decagonal prism…

A steer in a dipping vat, a vessel filled with oils to remove ticks.

Dipping Vat

A steer in a dipping vat, a vessel filled with oils to remove ticks.

A steer emerging from a dipping vat, a vessel filled with oils to remove ticks.

Dipping Vat

A steer emerging from a dipping vat, a vessel filled with oils to remove ticks.

"Life history of a coral, Monoxenia darwinii. A, B, Ovum. C, Division into two. D, four-cell stage. E, Blastula. F, Free-swimming blastula with cilia. G, Section of blastula. H, Beginning of invagination. I, Section of completed gastrula, showing ectoderm, and archenteron. K, Free-swimming ciliiated gastrula." -Thomson, 1916

Coral Stages

"Life history of a coral, Monoxenia darwinii. A, B, Ovum. C, Division into two. D, four-cell stage.…

"Vorticella. 1. Structure. N., Macronucleus; n., micronucleus; c.v., contractile vacuole; m., mouth; f.v., food vacuole; v., vestibule. 2. Encysted individual. 3. Division. 4. Separation of a free-swimming unit--the result of a division. 5. Formation of eight minute units (mg.). 6. Conjugation of microzooid (mg.) with one normal size." -Thomson, 1916

Vorticella

"Vorticella. 1. Structure. N., Macronucleus; n., micronucleus; c.v., contractile vacuole; m., mouth;…

"Diagrammatic representation of development of Oscarella lobularis. Bl., Free-swimming blastula with flagella; G., gastrula settled down. Next figure shows folding of inner layer (En.); Ec., outer layer. Lowest figure shows radial chambers (R.C.); Mesogloea (Mg.); inhalant pore (P.); exhalant osculum (O.)." -Thomson, 1916

O. Lobularis

"Diagrammatic representation of development of Oscarella lobularis. Bl., Free-swimming blastula with…

"Life history of liver fluke. 1. Developing embryo in egg-case; 2. free-swimming ciliated embryo; 3. sporocyst; 3a. shell of Limnaus truncatulus; 4. division of sporocyst; 5. sporocyst with rediae forming within it; 6. redia with more rediae forming within it; 7. tailed cercaria; 8. young fluke." -Thomson, 1916

Liver Fluke Stages

"Life history of liver fluke. 1. Developing embryo in egg-case; 2. free-swimming ciliated embryo; 3.…

"Dorsal aspect of swimming crab (Portunus). P., Paddle; Abd., abdomen; A1., antennules; A2., antennae; E., eyes; F., forceps." -Thomson, 1916

Swimming Crab

"Dorsal aspect of swimming crab (Portunus). P., Paddle; Abd., abdomen; A1., antennules; A2., antennae;…

"A, Euglena viridis, a flagellate Infusorian. I, typical swimming condition; 2, somewhat contracted; 3, spherical resting condition; 4, encysted stage in which fission has taken place. c, cyst; f, flagellum; n, nucleus; o, mouth; p.v., pulsating vacuole; sp, pigment spot. B, Podophrya, a stalked Infusorian bearing tentacles (t). p, Infusorian captured for food; s, stalk." -Galloway, 1915

Euglena Viridis

"A, Euglena viridis, a flagellate Infusorian. I, typical swimming condition; 2, somewhat contracted;…

"The Devil-fish (Octopus). A, at rest; B, swimming. a, arms, with suckers on the inner aspect; e, eye; s, siphon or funnel." -Galloway, 1915

Octopus

"The Devil-fish (Octopus). A, at rest; B, swimming. a, arms, with suckers on the inner aspect; e, eye;…

"A family of bears not far from the camp frolicked and splashed in a shallow natural basin." -University Society, 1912

Bear Family

"A family of bears not far from the camp frolicked and splashed in a shallow natural basin." -University…

"Stages in the development of Laomedea; A-F stages in segmentation; G, the planula enclosed in the maternal tissues; H, the free-swimming planula." -Parker, 1900

Laomedea

"Stages in the development of Laomedea; A-F stages in segmentation; G, the planula enclosed in the maternal…

"Hormiphora (Cydippe) plumosa. A, from the side; B, from the aboral pole. mth, mouth; s. pl, swimming plates; t and b, tentacles." -Parker, 1900

Hormiphora Plumosa

"Hormiphora (Cydippe) plumosa. A, from the side; B, from the aboral pole. mth, mouth; s. pl, swimming…

"Diagram of the metamorphosis of the free, tailed larva into the fixed Ascidian. A, stage of free-swimming larva; B, larva recently fixed; C, older fixed stage. adh, adhesive papillae; atr, atrial cavity; cil. gr, ciliated groove; end, endostyle; ht, heart; med, ganglion of trunk; n. gn, nerve-ganglion; noto, notochord; or, oral aperture; rect, reectum; sens ves, sense vesicle; stig, stigmata; stol, stolon; t, tail." -Parker, 1900

Ascidian Stages

"Diagram of the metamorphosis of the free, tailed larva into the fixed Ascidian. A, stage of free-swimming…

"The principal apparatus of progression of the animal is the funnel with which it is furnished, in common with all Cephalopods, and which is very long in the argonaut. Aided by this apparatus, it ejects water after it has served the purpose of respiration, and in doing so, projects itself through the water."

Argonauta Papyracea Swimming

"The principal apparatus of progression of the animal is the funnel with which it is furnished, in common…

br: the branchiae, or gill-openings c: the heart f: the liver vn: swimming bladders ci: intestinal canal o: the ovaries u: urethra a: anus o': oviduct

Anatomy of the Carp

br: the branchiae, or gill-openings c: the heart f: the liver vn: swimming bladders ci: intestinal canal…

"Besides flight, birds possess other means of locomotion, being formed for walking, swimming or flying, according as their habits are aerial, terrestrial or aquatic."

Wing of a Penguin

"Besides flight, birds possess other means of locomotion, being formed for walking, swimming or flying,…

"The uppermost figure in the illustration shows the Argonaut in the act of swimming. The extremity of the siphon is seen projecting immediately below the eye, and the reader will at once understand that if the action forcibly ejects water from the tube, the effect will be to drive the animal rapidly in the contrary direction; that is, from right to left, as seen in the engraving. The third figure represents an empty shell, and is given for the purpose of showing the partially spiral and deeply grooved keel, as well as the extreme tenuity of the shell itself."

Argonaut, or Paper Nautlius

"The uppermost figure in the illustration shows the Argonaut in the act of swimming. The extremity of…

"The <em>Crinoidea</em>, which belong to the family of starfishes, are mostly attached to marine rocks by a sort of root. Another division of this family, although at first fixed to some rooted stem, in their adult state they throw off the bonds and move freely, swimming through the water water or clinging to mussel or oyster banks."

Pentacrinus Europaeus (Thompson)

"The Crinoidea, which belong to the family of starfishes, are mostly attached to marine rocks…

Coots , are medium-sized water birds which are members of the rail family Rallidae. They constitute the genus Fulica. Coots have predominantly black plumage, and, unlike many of the rails, they are usually easy to see, often swimming in open water. They are close relatives of the moorhen. The greatest species variety is in South America, and it is likely that the genus originated there. They are common in Europe and North America.

Coot

Coots , are medium-sized water birds which are members of the rail family Rallidae. They constitute…

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Santonian to Campanian sub-epochs of the Late Cretaceous (89-65 mya). Hesperornis were very large birds, reaching up to 2 meters (6.5 feet) in length. They had virtually no wings, swimming with powerful hind legs. Their toes were probably lobed rather than being webbed, as in today's grebes; like in these, the toes could rotate well, which is necessary to decrease drag in lobed feet but not in webbed ones such as in loons, where the toes are simply folded together.

Hesperornis

Hesperornis is an extinct genus of flightless aquatic birds that lived during the Santonian to Campanian…

An illustration of a small jellyfish. Jellyfish are free-swimming members of the phylum Cnidaria. ellyfish don't have specialized digestive, osmoregulatory, central nervous, respiratory, or circulatory systems. They digest using the gastrodermal lining of the gastrovascular cavity, where nutrients are absorbed. They do not need a respiratory system since their skin is thin enough that the body is oxygenated by diffusion. They have limited control over movement and mostly free-float, but can use the hydrostatic skeleton of the water pouch to accomplish vertical movement through pulsations of the disc-like body.

Jellyfish

An illustration of a small jellyfish. Jellyfish are free-swimming members of the phylum Cnidaria. ellyfish…

Boys running from a concealed swimming hole as they quickly dress themselves.

Boys Running

Boys running from a concealed swimming hole as they quickly dress themselves.

A boy and a girl wading in a river.

Children Wading in a River

A boy and a girl wading in a river.