Insects

AmphibiansReptiles Fish Birds

Mammals

A small creatures with no bones, six legs, a body divided intothree parts (the head, THORAX, and ABDOMEN), and usu. two

pairs of wings, such as an ant or fly

An animals, such as a frog, that is able to live both on land and in water

Popular amphibians:

Frogs

Toads

Salamanders

A small animals that is like a LIZARD but with soft skin and lives partly on land and partly in water

Reptiles, or members of the class Reptilia, are air-breathing, cold-blooded amniotes that have skin covered in scales or scutes as opposed to hair or feathers. They are tetrapods (having or having descended from vertebrates with four

limbs) and lay amniote eggs, whose embryos are surrounded by the amnion membrane. Modern reptiles inhabit every

continent with the exception of Antarctica, and four living orders are currently recognized

Popular reptiles:

Crocodiles

Snakes

Lizards

Turtles

A toad can refer to a number of species of amphibians in the order Anura. A distinction is often made between frogs and toads by their

appearance, prompted by the convergent adaptation among so-called "toads" to dry

habitats. Many "toads" often have leathery skin for better water retention, and a brown coloration for camouflage. They also tend to burrow. However,

these adaptations are not reliable indicators of its ancestry. Because taxonomy reflects only

evolutionary relationships, any distinction between frogs and toads is irrelevant to their classification.

Most frogs are characterized by long hind legs, a short body, webbed digits (fingers or toes), protruding eyes and

the absence of a tail. Most frogs have a semi-aquatic lifestyle, but move easily on land by jumping or climbing. They typically lay their eggs in puddles, ponds or lakes,

and their larvae, called tadpoles, have gills and develop in water. Adult frogs follow a carnivorous diet, mostly of arthropods, annelids and gastropods. Frogs are most

noticeable by their call, which can be widely heard during the night or day, mainly in their mating season.

A crocodile is any species belonging to the family Crocodylidae (sometimes classified instead as the subfamily Crocodylinae). The term can also be used

more loosely to include all members of the order Crocodilia: i.e. the true crocodiles, the alligators and caimans (family Alligatoridae) and the gharials (family Gavialidae), or even the Crocodylomorpha which includes prehistoric

crocodile relatives and ancestors. Crocodiles are large aquatic reptiles that live throughout the tropics in Africa, Asia, the Americas and Australia. Crocodiles

tend to congregate in freshwater habitats like rivers, lakes, wetlands and sometimes in brackish water. They feed mostly on vertebrates like fish, reptiles, and mammals, sometimes on invertebrates like mollusks and

crustaceans, depending on species. They are an ancient lineage, and are believed to have changed little since the time of the dinosaurs.

Snakes are elongate legless carnivorous reptiles of the suborder Serpentes that can be distinguished from legless lizards by their lack of eyelids and external ears. Like all squamates, snakes are ectothermic amniote vertebrates covered in overlapping scales.

Like lizards, from which they evolved, they have loosely articulated skulls, and most can dislocate their lower jaw in

order to swallow prey much larger than their own head. In order to accommodate their narrow bodies, snakes' paired organs

(such as kidneys) appear one in front of the other instead of side by side, and they have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side

of the cloaca.

Lizards are a large and widespread group of squamate reptiles, with nearly 5,000 species, ranging across all continents except Antarctica

as well as most oceanic island chains. The group, traditionally recognized as the suborder Lacertilia, is defined as all extant

members of the Lepidosauria (reptiles with overlapping scales) which are neither sphenodonts (i.e., Tuatara) nor snakes. While the

snakes are recognized as falling phylogenetically within the anguimorph lizards from which they evolved, the sphenodonts are the sister group to the squamates, the larger monophyletic group

which includes both the lizards and the snakes.

Turtles are reptiles of the order Testudines (the crown group of the superorder Chelonia), most of whose body

is shielded by a special bony or cartilaginous shell developed from their ribs. "Turtle" may either refer to the Testudines as a whole, or to particular Testudines which make up a form taxon that is not monophyletic—see also sea turtle, terrapin, tortoise, and the discussion below.

A fish is any aquatic vertebrate animal that is typically ectothermic (or cold-blooded), covered with scales, and equipped with two sets of

paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being known from mountain streams as well

as in the deepest depths of the ocean .Fish are of tremendous importance as food for people around the world, either collected from

the wild (see fishing) or farmed in much the same way as cattle or chickens (see aquaculture). Fish are also exploited for recreation,

through angling and fishkeeping, and are commonly exhibited in public aquaria.

Popular fish:

Sharks

Gold fish

Sharks (superorder Selachimorpha) are a type of fish with a full cartilaginous skeleton and a highly streamlined body. They respire

with the use of five to seven gill slits. Sharks have a covering of dermal denticles that protect their skin from damage and parasites and improve fluid dynamics. They have several sets of replaceable

teeth. Sharks range in size from the small dwarf lanternshark, Etmopterus perryi, a deep sea species of only 17 centimetres (7 in)

in length, to the whale shark, Rhincodon typus, the largest fish, which grows to a length of approximately 12 metres (39 ft) and

which feeds only on plankton, squid, and small fish through filter feeding.

Goldfish (Carassius auratus) are small ornamental freshwater fish that are commonly kept as pets. Goldfish were one of the earliest breeds of fish to be domesticated and are still one of the most commonly kept fish in aquariums and outdoor water

gardens.

Birds (class Aves) are winged, bipedal, endothermic (warm-blooded), vertebrate animals that lay eggs. There are around 10,000 living species,

making them the most numerous tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Birds

range in size from the 5 cm (2 in) Bee Hummingbird to the 2.7 m (8 ft 10 in) Ostrich. The fossil record indicates that birds evolved from theropod dinosaurs during the Jurassic period, around 150–200 Ma (million years ago), and the earliest known bird is the Late Jurassic

Archaeopteryx, c 155–150 Ma. Most paleontologists regard birds as the only clade of dinosaurs that survived the Cretaceous–Tertiary extinction

event approximately 65.5 Ma.

Popular birds:

Owl

ChickenDucks

The chicken (Gallus gallus, sometimes G. gallus domesticus) is a domesticated fowl. Recent evidence suggests that domestication of the

chicken was under way in Vietnam over 10,000 years ago. Until this discovery, conventional wisdom held that the chicken was domesticated in India. From India the domesticated fowl made its way to Persia. From the Persianized kingdom of Lydia in western Asia Minor, domestic fowl were imported to Greece perhaps as late as the fifth century BCE. Fowl

had been known in Egypt since the 18th Dynasty, the "bird that lays every day" having come to Egypt, according to the annals of Tutmose III,

as tribute from from the land between Syria and Shinar, that is Babylonia. Fowl make no appearance in the Old Testament.

Duck is the common name for a number of species in the Anatidae family of birds. The ducks are divided between several subfamilies

listed in full in the Anatidae article; they do not represent a monophyletic group but a form taxon, being the Anatidae not

considered swans and geese. Ducks are mostly aquatic birds, mostly smaller than the swans and geese, and may be found in both fresh

water and sea water.

The Strigiformes (Owls) are an order of birds of prey, comprising 200 extant species. Most are solitary, and nocturnal, with some

exceptions. Owls mostly hunt small mammals, insects, and other birds, though a few species specialize in hunting fish. They are found in all regions of the Earth except Antarctica, most of Greenland, and some remote islands. Though owls are typically solitary, the literary

collective noun for a group of owls is a parliament.

Mammals (formally Mammalia) are a class of vertebrate animals whose name is derived from their distinctive feature, mammary

glands, with which they feed their young. They are also characterized by the possession of sweat glands, hair, three middle ear bones used

in hearing, and a neocortex region in the brain.Except for the five species of monotremes (which lay eggs), all mammals give birth to live young. Most mammals also possess

specialized teeth, and the largest group of mammals, the placentals, use a placenta during gestation. The mammalian brain regulates

endothermic and circulatory systems, including a four-chambered heart.

There are approximately 5,400 species of mammals, distributed in about 1,200 genera, 153 families, and 29 orders[1] (though this varies

by classification scheme). Mammals range in size from the 30–40-millimetre (1.2–1.6 in) Bumblebee Bat to the 33-metre (110 ft) Blue

Whale.

The mammals are divided into two subclasses, the prototheria, which includes the egg-laying monotremes, and the theria, which includes the live-bearing marsupials and placentals. Most mammals, including the six largest

orders, belong to the placental group. The three largest orders, in descending order, are Rodentia (mice, rats, and other small, gnawing mammals),

Chiroptera (bats), and Soricomorpha (shrews, moles and solenodons). The next three largest orders include the Carnivora (dogs, cats, weasels, bears,

seals, and their relatives), the Cetartiodactyla (including the even-toed hoofed mammals and the whales) and the Primates to which the human species

belongs. The relative size of these latter three orders differs according to the classification scheme and definitions used by various authors.

Popular mammals:

DogCat

Blue whaleHuman

The Blue Whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales (called Mysticeti). At up to 32.9 metres (108

feet) in length and 172 metric tonnes (190 short tons) or more in weight, it is the largest animal ever to have existed.

Long and slender, the Blue Whale's body can be various shades of bluish-grey dorsally and somewhat lighter underneath. There are at least three

distinct subspecies: B. m. musculus of the North Atlantic and North Pacific, B. m. intermedia of the Southern Ocean and B. m. brevicauda (also known

as the Pygmy Blue Whale) found in the Indian Ocean and South Pacific Ocean. B. m. indica, found in the Indian Ocean, may be another subspecies.

As with other baleen whales, its diet consists almost exclusively of small crustaceans known as krill.

A human being, also human or man is a member of a species of bipedal primates in the family Hominidae (taxonomically Homo sapiens—Latin: "wise human" or "knowing human"). DNA evidence indicates that modern humans originated in east Africa about 200,000 years ago. Humans have a highly developed brain, capable of abstract reasoning, language, introspection and problem solving. This mental capability, combined with an erect body carriage that frees the forelimbs (arms) for manipulating objects, has allowed humans to make far greater use of tools than any other species. Humans are distributed worldwide, with significant populations inhabiting most land areas of Earth, as well as large numbers of humans at any particular moment flying in vehicles through the atmosphere, many others traveling over and beneath the oceans, and even a few individuals living in low Earth orbit. The human population on Earth is greater than 6.7 billion, as of February 2009. There is only one extant subspecies, Homo sapiens sapiens. As of the present time, humans are a dominant form of biological life, in terms of their distribution and effect on the biosphere.

The dog is a domesticated subspecies of the gray wolf, a member of the Canidae family of the order Carnivora. The term is used for both feral and pet varieties. The domestic dog has been one of the most widely kept working and companion animals in human

history.The domestication of the gray wolf took place in a handful of events roughly 15,000 years ago in central Asia. The dog quickly became ubiquitous across culture in all parts of the

world, and was extremely valuable to early human settlements. For instance, it is believed that the successful emigration across the Bering Strait might not have been

possible without sled dogs. As a result of the domestication process, the dog developed a sophisticated intelligence that includes unparalleled social cognition and a simple

theory of mind[citation needed] that is important to their interaction with humans. These social skills have helped the dog to perform in myriad roles, such as hunting, herding, protection, and, more recently, assisting handicapped individuals. Currently, there are

estimated to be 400 million dogs in the world.

The cat (Felis catus), also known as the domestic cat or house cat to distinguish it from other felines and felids, is a small predatory carnivorous species of crepuscular

mammal that is valued by humans for its companionship and its ability to hunt vermin, snakes, scorpions, and other unwanted household pests. It has been

associated with humans for at least 9,500 years. A skilled predator, the cat is known to hunt over 1,000 species for food. It can be trained to obey simple commands. Individual cats have also been known to learn on their own to manipulate simple

mechanisms, such as doorknobs and toilet handles. Cats use a variety of vocalizations and types of body language for communication, including meowing,

purring, hissing, growling, squeaking, chirping, clicking, and grunting. Cats may be the most popular pet in the world, with over 600 million in homes all over the world. They are also bred and shown as registered pedigree pets. This hobby is known as

the "cat fancy."

Source:Wikipedia

Author: Ignacy Osetek