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Townsend's Big-eared Bat
Townsend's big-eared bat (''Corynorhinus townsendii'') is a species of vesper bat. Description Townsend's big-eared bat is a medium-sized bat (7-12 g)Townsend's Big-eared Bat (''Plecotus townsendii'') Nsrl.ttu.edu. Retrieved on 2010-11-05. with extremely long, flexible ears, and small yet noticeable lumps on each side of the snout. Its total length is around 10 cm (4 in.), its tail being around 5 cm (2 in) and its wingspan is about 28 cm (11 in). The dental formula of ''Corynorhinus townsendii'' is Range ''C. townsendii'' can be found in , |
Vesper Bat
Vespertilionidae is a family of microbats, of the order Chiroptera, flying, insect-eating mammals variously described as the common, vesper, or simple nosed bats. The vespertilionid family is the most diverse and widely distributed of bat families, specialised in many forms to occupy a range of habitats and ecological circumstances, and it is frequently observed or the subject of research. The facial features of the species are often simple, as they mainly rely on vocally emitted echolocation. The tails of the species are enclosed by the lower flight membranes between the legs. Over 300 species are distributed all over the world, on every continent except Antarctica. It owes its name to the genus ''Vespertilio'', which takes its name from a word for bat, ', derived from the Latin term ' meaning 'evening'; they are termed "evening bats" and were once referred to as "evening birds". (The term "evening bat" also often refers more specifically to one of the species, '' Nycticeius humer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echolocation Jamming
Echolocation (or sonar) systems of animals, like human radar systems, are susceptible to interference known as echolocation jamming or sonar jamming. Jamming occurs when non-target sounds interfere with target echoes. Jamming can be purposeful or inadvertent, and can be caused by the echolocation system itself, other echolocating animals, prey, or humans. Echolocating animals have evolved to minimize jamming, however; echolocation avoidance behaviors are not always successful. Self jamming Echolocating animals can jam themselves in a number of ways. Bats, for example, produce some of the loudest sounds in nature, and then they immediately listen for echoes that are hundreds of times fainter than the sounds they emit. To avoid deafening themselves, whenever a bat makes an echolocation emission, a small muscle in the bat's middle ear (the stapedius muscle) clamps down on small bones called ossicles, which normally amplify sounds between the ear drum and the cochlea. This dampens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fauna Of The Western United States
The fauna of the United States of America is all the animals living in the Continental United States and its surrounding seas and islands, the Hawaiian Archipelago, Alaska in the Arctic, and several island-territories in the Pacific and in the Caribbean. The U.S. has many endemic species found nowhere else on Earth. With most of the North American continent, the U.S. lies in the Nearctic, Neotropic, and Oceanic faunistic realms, and shares a great deal of its flora and fauna with the rest of the American supercontinent. An estimated 432 species of mammals characterize the fauna of the continental U.S. There are more than 800 species of bird and more than 100,000 known species of insects. There are 311 known reptiles, 295 amphibians and 1154 known fish species in the U.S. Known animals that exist in all of the lower 48 states include white-tailed deer, bobcat, raccoon, muskrat, striped skunk, barn owl, American mink, American beaver, North American river otter and red fox. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fauna Of The Eastern United States
Fauna is all of the animal life present in a particular region or time. The corresponding term for plants is ''flora'', and for fungi, it is ''funga''. Flora, fauna, funga and other forms of life are collectively referred to as '' biota''. Zoologists and paleontologists use ''fauna'' to refer to a typical collection of animals found in a specific time or place, e.g. the "Sonoran Desert fauna" or the "Burgess Shale fauna". Paleontologists sometimes refer to a sequence of faunal stages, which is a series of rocks all containing similar fossils. The study of animals of a particular region is called faunistics. Etymology ''Fauna'' comes from the name Fauna, a Roman goddess of earth and fertility, the Roman god Faunus, and the related forest spirits called Fauns. All three words are cognates of the name of the Greek god Pan, and ''panis'' is the Greek equivalent of fauna. ''Fauna'' is also the word for a book that catalogues the animals in such a manner. The term was first used by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bats Of Mexico
Bats are mammals of the order Chiroptera.''cheir'', "hand" and πτερόν''pteron'', "wing". With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out digits covered with a thin membrane or patagium. The smallest bat, and arguably the smallest extant mammal, is Kitti's hog-nosed bat, which is in length, across the wings and in mass. The largest bats are the flying foxes, with the giant golden-crowned flying fox, ''Acerodon jubatus'', reaching a weight of and having a wingspan of . The second largest order of mammals after rodents, bats comprise about 20% of all classified mammal species worldwide, with over 1,400 species. These were traditionally divided into two suborders: the largely fruit-eating megabats, and the echolocating microbats. But more recent evidence has supported dividing the order into Yinpterochiroptera and Yangochiropter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corynorhinus
The genus ''Corynorhinus'' consists of the big-eared bats, or American long-eared bats. Only three species occur in the genus, all occurring in North America. Members of this group were previously in the genus ''Plecotus'', the long-eared bats, and were also then called lump-nosed bats. Populations of these species are generally uncommon and declining. Two subspecies, the Virginia big-eared bat (''C. t. virginianus'') and the Ozark big-eared bat (''C. t. ingens'') are federally endangered. Species ''Corynorhinus'' species are: *''Corynorhinus rafinesquii'' Rafinesque's big-eared bat *''Corynorhinus mexicanus'' Mexican big-eared bat *''Corynorhinus townsendii'' Townsend's big-eared bat **''C. t. ingens'' Ozark big-eared bat (endangered) **''C. t. pallescens'' western big-eared bat **''C. t. townsendii'' Townsend's big-eared bat **''C. t. virginianus'' Virginia big-eared bat (endangered) Popular culture ''Corynorhinus'' is one of the track listing names in the Batm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Described In 1837
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla ( cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bats Of Canada
There are eighteen indigenous species of bats in Canada, which are found in many parts of the country. They are insectivores, and are prey to falcons, hawks, owls, snakes, cats, and raccoons.Health Canada Species The little brown bat is the most common and widely distributed of Canada's bat species, Baily: 1997. Page 3 more prevalent in Eastern Canada than in Western Canada or Northern Canada. The nocturnal bat roosts in dark places during the day, and preys on insects at night. Their echolocation calls are emitted 20 times per second, increasing to 200 times per second while chasing prey. The habitat range of the big brown bat is in the southern parts of Quebec, Ontario, Manitoba, Saskatchewan, and British Columbia, and throughout Alberta. Males are solitary, whereas females "gather in maternity colonies in the spring and summer", consisting of up to 75 adults with their offspring. Smithsonian: Big Brown Bat They forage at night on dry, warm evenings, catching and eating flying ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bats Of The United States
Most of the many bat species found in the United States are insectivorous except for three flower eating species that migrate from Mexico and one that inhabits the Florida Keys. __TOC__ Species Bats belong to the biological order of Chiroptera. The bat families found in North America are Vespertilionidae, Molossidae, Mormoopidae and Phyllostomidae. Molossidae * Florida bonneted bat ''Eumops floridanus'' * Wagner's bonneted bat ''Eumops glaucinis'' *Western mastiff bat ''Eumops perotis'' * Underwood's bonneted bat ''Eumops underwoodi'' *Velvety free-tailed bat ''Molossus molossus'' * Pocketed free-tailed bat ''Nyctinomops femorosaccus'' * Big free-tailed bat ''Nyctinomops macrotis'' *Mexican free-tailed bat ''Tadarida brasiliensis'' Mormoopidae *Ghost-faced bat ''Mormoops megalophylla'' Phyllostomidae *Jamaican fruit bat ''Artibeus jamaicensis'' (Florida Keys only) *Mexican long-tongued bat ''Choeronycteris mexicana'' *Mexican long-nosed bat ''Leptonycteris nivalis'' *Cali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia Big-eared Bat
The Virginia big-eared bat (''Corynorhinus townsendii virginianus'') is one of two endangered subspecies of the Townsend's big-eared bat. It is found in Virginia, West Virginia, North Carolina, and Kentucky. In 1979, the US Fish and Wildlife Service categorized this as an endangered species. There are about 20,000 left and most of them can be found in West Virginia. The Virginia Big-Eared Bat is the state bat of Virginia.Virginia State Bat Description 
The Virginia big-eared bat has light to dark brown fur depending on age. Their fur is long and soft and the same ...
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Ozark Big-eared Bat
The Ozark big-eared bat is an endangered species found only in a small number of caves in Arkansas, Oklahoma and Missouri, the southern central United States. Also known as the western big-eared bat, the long-eared bat, and the lump-nosed bat, its appearance is defined by a pair of outsize ears and a lump-adorned nose. The Ozark big-eared bat is the largest and reddest of the five subspecies of ''Corynorhinus townsendii'' and is medium-sized and weighs from 0.2 to 0.5 ounces.U.S. Fish & Wildlife Service It has very large, 1-inch-long ears that connect at the base across the forehead. The snout has large, prominent lumps above the nostrils. These particular bats feed on moths and other insects; they forage along forest edges. Importance Bats are beneficial to our planet in a myriad of ways. A colony of big brown bats can eat 18 million cucumber beetles.Wild Cave National Park The insectivorous food habits of bats play an important role in maintaining a balance among insect p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinna (anatomy)
The auricle or auricula is the visible part of the ear that is outside the head. It is also called the pinna (Latin for "wing" or "fin", plural pinnae), a term that is used more in zoology. Structure The diagram shows the shape and location of most of these components: * ''antihelix'' forms a 'Y' shape where the upper parts are: ** ''Superior crus'' (to the left of the ''fossa triangularis'' in the diagram) ** ''Inferior crus'' (to the right of the ''fossa triangularis'' in the diagram) * ''Antitragus'' is below the ''tragus'' * ''Aperture'' is the entrance to the ear canal * ''Auricular sulcus'' is the depression behind the ear next to the head * ''Concha'' is the hollow next to the ear canal * Conchal angle is the angle that the back of the ''concha'' makes with the side of the head * ''Crus'' of the helix is just above the ''tragus'' * ''Cymba conchae'' is the narrowest end of the ''concha'' * External auditory meatus is the ear canal * ''Fossa triangularis'' is the depres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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