Animals Animals The Acanthocephala (gr. Acanthus - thorn Kephale - head) is a phylum of parasitic worms, characterised by the presence of an evertable proboscis, armed with spines, which it uses to pierce and hold the gut wall of its host. Acanthocephalans typically have complex life cycles, involving a number of hosts, including invertebrates, fishes, amphibians, birds, and mammals. About 850 species have been described. ...more on Wikipedia about "Acanthocephala"
The Acoelomorpha are a phylum of animals formerly considered flatworms, but now known to be a separate group, basal among the Bilateria. ...more on Wikipedia about "Acoelomorpha"
Agnotozoa is a sub-kingdom of three small phyla of simple animals without organs. They still have differentiated tissue, but that tissue is only organized in simple forms, such as being layered. ...more on Wikipedia about "Agnotozoa"
Animals are a major group of organisms, classified as the kingdom Animalia or Metazoa. In general they are multicellular, capable of locomotion and responsive to their environment, and feed by consuming other organisms. Their body plan becomes fixed as they develop, usually early on in their development as embryos, although some undergo a process of metamorphosis later on. ...more on Wikipedia about "Animal"
Animals as electoral candidates have been found in a number of countries. Often, the candidacies are a means of casting a protest vote or satirizing the political system — voting for an animal above "real" politicians often embarrasses those politicians. Other times, it is simply done for the entertainment value. ...more on Wikipedia about "Animals as electoral candidates"
Throughout history there have been many occurrences of animals attacking humans. It is very common for particular animals to attack, but for other species it can be quite unusual. This should be differentiated from parasites on humans such as mosquitos or leeches which do not attack as such. ...more on Wikipedia about "Animals attacking humans"
The annelids, collectively called Annelida (from Latin annellus "little ring"), are a large phylum of animals, comprising the segmented worms, with about 15 000 modern species including the well-known earthworms and leeches. They are found in most wet environments, and include many terrestrial, freshwater, and especially marine species (such as the often gorgeous polychaetes), as well as some which are parasitic or mutualistic. They range in length from under a millimetre to over 3 metres. ...more on Wikipedia about "Annelid"
http://www.shortopedia.com, just the best.
Anopla is one of the two classes of the phylum Nemertea. Its members are characterised by the absence of stylets on the proboscis, and the mouth being below or behind the brain. Although Anopla is a paraphyletic group, it is used in almost all classifications. Anopla is divided into two orders: Palaeonemertea and Heteronemertea. ...more on Wikipedia about "Anopla"
Apantomancy is divination by seeing animals. The diviner works him/herself into a state of trance until a vision of an animal or animals appears. The interpretation of the vision is based on what animal(s) appear. Mexico City is said to have been founded where Aztec soothsayers saw an eagle flying from a cactus carrying a live snake. ...more on Wikipedia about "Apantomancy"
Animal environments are classified as either aquatic (water), terrestrial (land), or amphibious (water and land). Aquatic animals require a watery habitat, but do not necessarily have to live entirely in water. This term can be applied to aquatic or sea mammals such as those in the order Cetacea ( whales), which cannot survive on land, as well as four-footed mammals like the river otter ( Lutra canadensis) and beavers (family Castoridae). It also includes aquatic birds that either swim, wade or dive on the water itself and live outside the water. These include the seabirds, such as gulls (family Laridae), pelicans (family Pelecanidae), and albatrosses (family Diomedeidae), and the anseriforms, such as ducks, swans, and geese (family Anatidae). ...more on Wikipedia about "Aquatic animal"
Arthropods ( phylum Arthropoda) (Greek "jointed feet") are the largest phylum of animals and include the insects, arachnids, crustaceans, and other similar creatures. In approximate statistics, over eighty percent extant (living today) animal species are arthropods, with over a million modern species described and a fossil record reaching back to the early Cambrian. Arthropods are common throughout marine, freshwater, terrestrial, and even aerial environments, as well as including various symbiotic and parasitic forms. They range in size from microscopic plankton (~0.25 mm) up to forms several metres long. ...more on Wikipedia about "Arthropod"
The Aschelminthes (sometimes Aeschelminthes), are an obsolete phylum of pseudocoelomate and other similar animals, including as classes the Nematoda, Rotifera, Gastrotricha, Kinorhyncha, and Nematomorpha, and sometimes the Priapulida and Entoprocta. Many of these groups are no longer considered closely related and have been promoted to phyla in their own right. The name is now generally only used as an informal term. ...more on Wikipedia about "Aschelminthes"
The Aspidogastrea (gr. aspid - shield, gaster - stomach/pouch) is a small group of flukes comprising about 80 species. It is a subclass of the trematoda, and sister group to the Digenea. Species range in length from approximately one mm to several cm. They are parasites of freshwater and marine molluscs and vertebrates ( cartilaginous and bony fishes and turtles). Maturation may occur in the mollusc or vertebrate host. None of the species has any economic importance, but the group is of very great interest to biologists because it has several characters which appear to be archaic. ...more on Wikipedia about "Aspidogastrea"
Baylisascaris is a genus of roundworms that infest more than fifty animal species. ...more on Wikipedia about "Baylisascaris"
The bdelloids (Bdelloidea) are a class of rotifers, found in freshwater and moist soil. They typically have a well developed corona, divided into two parts, on a retractable head. They may move by swimming or crawling. The latter commonly involves taking alternate steps with the head and tail, as do certain leeches, which gives the group their name ( Greek βδελλα or bdella, meaning leech). ...more on Wikipedia about "Bdelloid"
The Bilateria, having bilateral symmetry, are a subregnum (a major group) of animals, including the majority of phyla; the most notable exceptions are the sponges and cnidarians. For the most part, Bilateria have bodies that develop from three different germ layers, called the endoderm, mesoderm, and ectoderm. From this they are called triploblastic. Nearly all are bilaterally symmetrical, or approximately so. The most notable exception is the echinoderms, which are radially symmetrical as adults, but are bilaterally symmetrical as larvae. ...more on Wikipedia about "Bilateria"
By the broadest definition, a body cavity is any fluid filled space in a multicellular organism. However, the term usually refers to the space, located between an animal’s outer covering ( epidermis) and the outer lining of the gut cavity, where internal organs develop. ...more on Wikipedia about "Body cavity"
Brachiopods (from Latin bracchium, arm + New Latin -poda, foot) make up one of the major animal phyla, Brachiopoda. Also known as lamp shells, they are sessile, two-shelled, marine animals that somewhat resemble pelecypod mollusks (i.e. "clams") externally but are quite different internally. Unlike bivalves, which have a left shell and a right shell, brachiopods are always bilaterally symmetric, although the top and bottom shells usually differ in shape. The shells may be either phosphatic or calcaerous. Some fossil forms also had elaborate spines. ...more on Wikipedia about "Brachiopod"
A breed is a domesticated subspecies or infrasubspecies of an animal. ...more on Wikipedia about "Breed"
Chaetognatha is a phylum of predatory marine worms that are a major component of plankton worldwide. They show some preference for warmer waters. Chaetognaths are transparent and are torpedo shaped sometimes with arrowhead like opaque structures in their heads. They range in size from 3mm to 12cm. The common term for the phylum is Arrow Worms. There are about 100 modern species assigned to 15 genera. Despite the limited diversity, the number of individuals is staggering. ...more on Wikipedia about "Chaetognatha"
Craniforma is a class of lamp shells and the only class of the subphylum Craniformea. It comprises 3 orders, of which only one (the Craniida) is still found living. ...more on Wikipedia about "Craniforma"
Crurotarsi ("cross-ankles") is a node-based taxon created by Paul Sereno in 1991 to supplant the old term Pseudosuchia. As the basal phylogeny of this clade is not really understood, a stem-based definition is now preferred: all forms closer to Crocodiles than to Birds. As such, the Crurotarsi are the opposite branch to the Ornithodira (all forms closer to Birds than Crocodiles). In terms of the old Linnean taxonomy they correspond more or less to the Orders Thecodonta (minus the Proterosuchia) and Crocodilia ...more on Wikipedia about "Crurotarsi"
(Dangerous organisms) The article attempts to categorize the relative dangers of different Biota to humans. While viruses are arguably not living, they are included. The danger that large animals pose is largely overestimated by humans. ...more on Wikipedia about "Dangerous organisms"
Debeaking, also known as "beak trimming," is a process by which parts of the beak of a chicken are removed. ...more on Wikipedia about "Debeaking"
Deuterostomes (taxonomic term: Deuterostomia; from the Greek: "other mouth") are a superphylum of animals. They are a subtaxon of the Bilateria branch of the subregnum Eumetazoa, and are opposed to the protostomes. Deuterostomes are distinguished by their embryonic development; in deuterostomes, the first opening (the blastopore) becomes the anus, while in protostomes it becomes the mouth. ...more on Wikipedia about "Deuterostome" This article is made on shortopedia shortopedia
This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia . Direct links to the original articles are in the text.
If you use exact copy or modified of this article you should preserve above paragraph and put also : It uses material from
the Shortopedia article about "Animals".
| MAIN PAGE | MAIN INDEX | CONTACT US |