ClipArt ETC
The velvet crab (alternatively velvet swimming crab or devil crab) is the largest swimming crab found in British coastal waters, with a carapace width of up to 100 mm. The body is coated with short hairs, giving the animal a velvety texture, hence the common name. It is one of the major crab species for UK fisheries. The velvet crab lives from southern Norway to Western Sahara in the North Sea and north Atlantic as well as western parts of the Mediterranean Sea, on rocky bottoms from the shoreline to a depth of about 65 m. The last pair of pereiopods are flattened to facilitate swimming.

Velvet Crab

The velvet crab (alternatively velvet swimming crab or devil crab) is the largest swimming crab found…

A nauplius (plural nauplii) is the first larva of animals classified as crustaceans (subphylum of Arthropoda). It consists of a head and a telson. The thorax and abdomen, characteristic of adult crustaceans, have not developed yet. A prominent characteristic of nauplii is that they have only one compound eye, which will divide in two in later stages. Nauplii have three pairs of cephalic appendages with which they swim; in the adult these become the antennules, the antennae, and the mandibles. The name nauplii properly refers to crustacean larvae that use appendages that stem from the head (antennules and antennae) as their main means of swimming.

Nauplius of a Prawn

A nauplius (plural nauplii) is the first larva of animals classified as crustaceans (subphylum of Arthropoda).…

Upside-down catfish, Synodontis nigriventris, is a species of catfish. It's particularly noteworthy because of its habit of swimming upside down most of the time. Upside-down catfish originate from the Central Congo basin of Africa.

Upside-down Catfish

Upside-down catfish, Synodontis nigriventris, is a species of catfish. It's particularly noteworthy…

Colonial, plant-like animals closely related to jellyfish, with stinging cells, Any member of the invertebrate order Hydroida (class Hydrozoa, phylum Cnidaria). Hydroids have three basic life-cycle stages: (1) a tiny free-swimming planula larva about 1 mm (0.04 inch) long, which settles and grows into (2) a sessile (attached), usually colonial hydroid stage, which in turn liberates (3) medusa.

Medusa of a Hydroid

Colonial, plant-like animals closely related to jellyfish, with stinging cells, Any member of the invertebrate…

An illustration of a young boy swimming.

Young Boy Swimming

An illustration of a young boy swimming.

The storm Petrel "of the Mediterranean and North Atlantic from Greenland to South Africa, which breeds in Scotland, Ireland, and the West of England, is sooty-black with the tail-coverts white, except at the tips, and a little white on the wing-coverts." A. H. Evans, 1900

Storm Petrel Swimming with Reflection

The storm Petrel "of the Mediterranean and North Atlantic from Greenland to South Africa, which breeds…

Biziura lobata, (Musk Duck) of Tasmania and Australia -except the north-is brown with buff mottlings, the bill and its leathery appendage being greenish-black and the feet dusky. The smaller female has less chin lobe." A. H. Evans

Two Musk Ducks Swimming between the Tall Grass in a Lake

Biziura lobata, (Musk Duck) of Tasmania and Australia -except the north-is brown with buff mottlings,…

An illustration of children swimming in a pond near a man rowing a boat.

Children Swimming

An illustration of children swimming in a pond near a man rowing a boat.

The Bell Animalcule (Vorticella) (fig 10) in certain respects resembles the Slipper Animalcule. It is generally attached by a slender stalk, and where many are growing together they appear like a delicate growth of mold upon the water weed. In figure 10 we see Vorticlla, an attached ciliate infusorian, highly magnified. (a) fully extented individual, (c.v.) pulsating vaculoe; (g) gullet; (n) nucleus. (b) contracted specimen, (c) small free-swimming individual, which unites with a statinary individual (one partly united is shown in specimen b).

Vorticella

The Bell Animalcule (Vorticella) (fig 10) in certain respects resembles the Slipper Animalcule. It is…

Gonionemus is a type of hydrozoan related to jellyfish. It uses adhesive discs near the middle of each tentacle to attach to eelgrass, sea lettuce or various types of algae instead of swimming. They are small bell shaped and hard to see when hanging on to swaying seaweed.

Gonionemus Jellyfish

Gonionemus is a type of hydrozoan related to jellyfish. It uses adhesive discs near the middle of each…

Gonionemus is a type of hydrozoan related to jellyfish. It uses adhesive discs near the middle of each tentacle to attach to eelgrass, sea lettuce or various types of algae instead of swimming. They are small bell shaped and hard to see when hanging on to swaying seaweed. Enlarged portions of a hydroid colony bearing the mouth and tentalces of this jellyfish are shown here.

Gonionemus Jellyfish

Gonionemus is a type of hydrozoan related to jellyfish. It uses adhesive discs near the middle of each…

Gonionemus is a type of hydrozoan related to jellyfish. It uses adhesive discs near the middle of each tentacle to attach to eelgrass, sea lettuce or various types of algae instead of swimming. They are small bell shaped and hard to see when hanging on to swaying seaweed. Enlarged portions of a hydroid colony bearing the mouth and tentalces of this jellyfish are shown here.

Gonionemus Jellyfish

Gonionemus is a type of hydrozoan related to jellyfish. It uses adhesive discs near the middle of each…

Gonionemus is a type of hydrozoan related to jellyfish. It uses adhesive discs near the middle of each tentacle to attach to eelgrass, sea lettuce or various types of algae instead of swimming. They are small bell shaped and hard to see when hanging on to swaying seaweed. This jellyfish diagram illustrates its method of locomotion.

Gonionemus Jellyfish

Gonionemus is a type of hydrozoan related to jellyfish. It uses adhesive discs near the middle of each…

Hydroids, related to the jellyfish, have three basic life-cycle stages: a tiny free-swimming planula larva, which settles and grows into a sessile attached, usually colonial hydroid stage, which in turn liberates medusae. An enlarged portion of a hydroid colony (Hydractinia) showing the nutritive polyp (a), the defensive polyp (b), and the reproductive polyp.

Hydroid Jellyfish

Hydroids, related to the jellyfish, have three basic life-cycle stages: a tiny free-swimming planula…

"Argent, a salmon proper, naiant, its head towards the sinister side of the shield. NAIANT. A French term for swimming. This term is used in Heraldry when a fish is drawn in an horizontal position." -Hall, 1862

Naiant

"Argent, a salmon proper, naiant, its head towards the sinister side of the shield. NAIANT. A French…

This sign is uses to indicate that a recreational swimming area is located nearby.

Swimming, Black and White

This sign is uses to indicate that a recreational swimming area is located nearby.

This sign is uses to indicate that a recreational swimming area is located nearby.

Swimming, Color

This sign is uses to indicate that a recreational swimming area is located nearby.

This sign is uses to indicate that a recreational swimming area is located nearby.

Swimming, Outline

This sign is uses to indicate that a recreational swimming area is located nearby.

This sign is uses to indicate that a recreational swimming area is located nearby.

Swimming, Silhouette

This sign is uses to indicate that a recreational swimming area is located nearby.

This sign indicates that diving is permitted nearby.

Diving, Black and White

This sign indicates that diving is permitted nearby.

This sign indicates that diving is permitted nearby.

Diving, Color

This sign indicates that diving is permitted nearby.

This sign indicates that diving is permitted nearby.

Diving, Outline

This sign indicates that diving is permitted nearby.

This sign indicates that diving is permitted nearby.

Diving, Silhouette

This sign indicates that diving is permitted nearby.

An illustration of a man swimming with sharks.

Man Swimming with Sharks

An illustration of a man swimming with sharks.

Morte D'Arthur is an illustration that was created by English illustrator Aubrey Beardsley. It depicts an Arthurian romance written by Sir Thomas Malory. This drawing depicts three swans swimming across a river.

Morte D'Arthur

Morte D'Arthur is an illustration that was created by English illustrator Aubrey Beardsley. It depicts…

"Recurvirostra. Avocets. Bell slender, more or less recurved, then the upper mandible hooked at the extreme tip; much longer than head, more or less nearly equalling tail and tarsus; flattened on top, without culminal ridge. Wings short (for a wader). Tail very short, square, less than half the wing. Legs exceedingly long and slender; tibiae long-denuded; tarsus nearly twice as long as middle toe and claw; covering of legs skinny. Feet 4-toed; the front toes full-webbed, hind toe short, free. Body remarkably depressed and feathered underneath with thick duck-like plumage; altogether, as in swimming rather than as in wading birds. Altogether, as in swimming rather than as in wading birds. It is a modification like that seen in the lobe-footed phalaropes. Sexes and young alike; winter and summer plumage different." Elliot Coues, 1884

Avocets

"Recurvirostra. Avocets. Bell slender, more or less recurved, then the upper mandible hooked at the…

"Fulicia. Coot. Bill and frontal plate much as in the Gallinultes. Body depressed; the under plumage thick and duck-like, to resist water. feet highly natatorial' toes, including the hinder, lobate, being furnished with large semicircular membranous flaps. The Coots are eminently aquatic birds, swimming with ease, by means of their lobate feet, like phalaropes and grebes; but this ability results from very slight modification of a structure shared by the Rails and Gallinules. There are about ten species, of both hemispheres, distinguished, among other characters, by the size and shape of the frontal shield. That, for instance, is of an exotic species, much larger than that of Fulica americana, and differently shaped. One species is remarkable for having the forehead singularly carunculate; the others closely resemble our common species." Elliott Coues, 1884

Coot Head

"Fulicia. Coot. Bill and frontal plate much as in the Gallinultes. Body depressed; the under plumage…

Tight fitting garment worn for swimming

Bathing Suit

Tight fitting garment worn for swimming

A scene illustrating a young boy jumping off of a diving board into a river. In the distance there is a figure swimming downstream, a boy looking down from a cliff and a figure canoeing into the sunset.

Boy Diving into a River at Sunset

A scene illustrating a young boy jumping off of a diving board into a river. In the distance there is…

A man struggling through a pond while carrying the Bible.

In the Slough of Despond

A man struggling through a pond while carrying the Bible.

An extreme form of the expanded foot, which is adapted for swimming.

Expanded Foot

An extreme form of the expanded foot, which is adapted for swimming.

"Foot of the seal, which opens and closes in the act of natation, the organ being folded upon itself during the non-effective or return stroke, and expanded during the effective or forward stroke. Due advantage is taken of this arrangement by the seal when swimming, the animal rotating on its long axis, so as to present the lower portion of the body and the feet obliquely to the water during the return stroke, and the flat, or the greatest available surface of both, during the effective or forward stroke."—Pettigrew, 1874

Foot of Seal

"Foot of the seal, which opens and closes in the act of natation, the organ being folded upon itself…

"The salmon swimming leisurely. The body, it will be observed, is bent in two curves, one occurring towards the head, the other towards the tail. The shape of the salmon is admirably adapted for cleaving the water."—Pettigrew, 1857

Salmon

"The salmon swimming leisurely. The body, it will be observed, is bent in two curves, one occurring…

A diagram showing the motions a young frog makes while swimming. In this stage of life, the frog makes ellipses in order to move through the water.

Ellipses of Swimming Frog

A diagram showing the motions a young frog makes while swimming. In this stage of life, the frog makes…

A diagram showing the motions a young frog makes whilst swimming. In this stage of the frog's life, the frog uses looping motions to move through the water.

Loops of Swimming Frog

A diagram showing the motions a young frog makes whilst swimming. In this stage of the frog's life,…

A diagram demonstrating the motion a frog makes whilst swimming. In this stage of the frog's life, the frog makes waved lines while moving through the water.

Swim Lines of Frog

A diagram demonstrating the motion a frog makes whilst swimming. In this stage of the frog's life, the…

"The overhead movement enables the swimmer to throw himself forward on the water, and to move his arms and legs in a nearly vertical instead of a horizontal plane; the extremities working, as it were, above and beneath the trunk, rather than on either side of it."—Pettigrew, 1874

Overhand Swimming

"The overhead movement enables the swimmer to throw himself forward on the water, and to move his arms…

"An improvement on the foregoing for long distances is the known as the side stroke. In this method, as the term indicates, the body is thrown more decidedly upon the side."—Pettigrew, 1874

Side-Stroke Swimming

"An improvement on the foregoing for long distances is the known as the side stroke. In this method,…

"The turtle, adapted for swimming and diving, the extremities being relatively larger than in the seal, sea-bear, and walrus. The anterior extremities have a thick anterior margin and a thin posterior one, and in this respect resemble wings."—Pettigrew, 1874

The Turtle

"The turtle, adapted for swimming and diving, the extremities being relatively larger than in the seal,…

"In the newt a tail is superadded to the extremities, the tail and the extremities both acting in swimming."—Pettigrew, 1874

Crested Newt

"In the newt a tail is superadded to the extremities, the tail and the extremities both acting in swimming."—Pettigrew,…

"The Little Penguin, adapted exclusively for swimming and diving. In this quaint bird the wing forms a perfect screw, and is employed as such in swimming and diving."—Pettigrew, 1874

Little Penguin

"The Little Penguin, adapted exclusively for swimming and diving. In this quaint bird the wing forms…

"Swan, in the act of swimming, the right foot being fully expanded and about to give the effective stroke, which is delivered outwards, downwards and backwards, as represented at r of fig. 50; the left foot being closed, and about to make the return stroke, as shown at s of fig. 50. In rapid swimming, the swan flexes its legs simultaneously and somewhat slowly; it then vigorously extends them."—Pettigrew, 1874

Swimming Swan

"Swan, in the act of swimming, the right foot being fully expanded and about to give the effective stroke,…

"In this foot each toe is provided with its swimming membrane; the membrane being closed when the foot is flexed, and expanded when the foot is extended."—Pettigrew, 1874

Foot of Grebe

"In this foot each toe is provided with its swimming membrane; the membrane being closed when the foot…

"The Flying fish, with wings expanded and elevated in the act of flight. This anomalous and interesting creature is adapted both for swimming and flying. The swimming-tail is consequently retained, and the pectoral fins, which act as wings, are enormously increased in size."—Pettigrew, 1874

Flying Fish

"The Flying fish, with wings expanded and elevated in the act of flight. This anomalous and interesting…

"A duck, <i>Fuligula</i> or <i>Fulix marila</i> and related species. The common scaup inhabits Europe, Asia, and North America. It is from 18 to 20 inches long, and from 30 to 35 in extent of wings." &mdash;Whitney, 1889 <p>In this illustration the duck is sitting on placid water, its feet tucked up underneath its body. Its head and upper body is dark, while its belly is white. There is a tree line in the distance.

Scaup, a Common Duck

"A duck, Fuligula or Fulix marila and related species. The common scaup inhabits Europe, Asia, and North…

<i>Melanitta americana or &OElig;demia nigra</i> A large sea-duck of the genus <i>CEdemia</i>, belonging to the subfamily <i>Fuligulinaea</i>, having in the male the plumage black and a red gibbosity of the bill, as <i>&OElig;demia nigra</i> of Europe. <p>In this illustration, the duck is swimming in a large body of water. There is a lighthouse in the background.

A Black Scoter Swimming

Melanitta americana or Œdemia nigra A large sea-duck of the genus CEdemia, belonging to the subfamily…

Illustration of the entrance of an igloo, built out of ice, partially underwater. A seal is swimming under the water, headed for the entrance.

Seal Swimming up to an Igloo

Illustration of the entrance of an igloo, built out of ice, partially underwater. A seal is swimming…

<i>Mergellus albellus</i>. "A small merganser or fishing duck...The male in adult plumage is a very beautiful bird, of a pure white, varied with black and gray, and tinged with green on the crested head; the length is about 17 inches. The female is smaller, with reddish-brown and gray plumage, and is called the red-headed smew." &mdash;Whitney, 1889

Smew - A Merganser or Fishing Duck

Mergellus albellus. "A small merganser or fishing duck...The male in adult plumage is a very beautiful…