Leopard frog
Leopard Frog, unknown species
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Amphibia Order: Anura Family: Ranidae Genus: Rana
Species
Rio Grande Leopard Frog, R. berlandieri Plains Leopard Frog, R. blairi Chiricahua Leopard Frog, R. chiricahuensis Vegas Valley Leopard Frog, R. fisheri Relict Leopard Frog R. onca Northern Leopard Frog, R. pipiens Southern Leopard Frog, R. sphenocephala Ramsey Canyon Leopard Frog, R. subaquavocalis Lowland Leopard Frog, R. yavapaiensis Green leopard frog in swamp with duckweed Copyright 1995 Steven J. Dunlop, Nerstrand, MN, USA. Released under the GFDL; all other rights reserved. ... Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... Animalia redirects here. ... Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... For other uses, see Amphibian (disambiguation). ... Suborders Archaeobatrachia Mesobatrachia Neobatrachia The Anura is the order of animals in the class Amphibia that includes frogs and toads. ... Genera Batacia Opyum Rana - Frog is the common name for amphibians in the order, Anura. ... Rana is a genus of frogs. ... Binomial name Lithobates berlandieri (Baird, 1859) Synonyms Rana berlandieri Rana halecina berlandieri Rana halecina austricola Rana virescens austricola Rana austricola Rana pipiens berlandieri Rana pipiens austricola The Rio Grande Leopard Frog (Lithobates berlandieri[1][2], previously Rana berlandieri) is a species of aquatic frog native to the southern United States... Binomial name Lithobates blairi (Mecham, Littlejohn, Oldham, Brown, and Brown, 1973) Synonyms Rana blairi The Plains Leopard Frog (Lithobates blairi [1][2], previously Rana blairi) is a species of mostly aquatic frog native to the United States. ... Binomial name Lithobates fisheri (Stejneger, 1893) Former range (in red) Synonyms Rana fisheri Rana pipiens fisheri Rana onca fisheri Rana (Rana) fisheri Rana (Pantherana) fisheri The Vegas Valley Leopard frog (Lithobates fisheri[1][2], previously Rana fisheri) is an extinct[3] frog species. ... Binomial name Lithobates pipiens (Schreber, 1782) Synonyms Rana pipiens The Northern Leopard Frog (Lithobates pipiens[1][2], previously Rana pipiens) is a species of Leopard frog from the true frog family native to parts of Canada and United States. ... Binomial name Lithobates sphenocephalus (Cope, 1886) Synonyms Rana sphenocephala The Southern Leopard Frog (Lithobates sphenocephalus[1][2], previously Rana sphenocephala) is a species of mostly aquatic true frog, found in the south-eastern third of the United States. ...

Leopard frogs, which are also called meadow frogs and grass frogs, are a collection of so-called true frog within the genus Rana. Once abundant in North America and Canada, their population has declined in recent years because of pollution and deforestation. Leopard frogs are often used as environmental indicator species because of their heightened sensitivity to chemical pollutants found in the air and water, and they are commonly used as dissection specimens in biology classrooms. The True frogs (of family Ranidae), have the widest distribution of any frog family. ... For other uses of the word, please see Genus (disambiguation). ... Rana is a genus of frogs. ... World map showing North America A satellite composite image of North America. ... It has been suggested that Pollutant be merged into this article or section. ... Deforestation is the conversion of forested areas to non-forest land use such as arable land, pasture, urban use, logged area or wasteland. ... This article does not cite any references or sources. ... Indicator species are unique environmental indicators as they offer a signal of the biological condition in a watershed or ecosystem, and are a warning system that pollution has entered the food web. ... A chemical substance is any material substance used in or obtained by a process in chemistry: A chemical compound is a substance consisting of two or more chemical elements that are chemically combined in fixed proportions. ... Dissected rat showing major organs. ... This article or section does not cite any references or sources. ...

Northern Leopard Frog, Rana pipiens

Leopard frogs are recognized by their green or brown coloration with distinct light-edged dark spots across the back and white underside. They also have a characteristic line of raised glandular skin, called the dorsolateral ridge, extending from each eye to the groin. Some species also have a light marking on the center of their tympanic membrane. Males have two vocal sacs, located on both sides of the body, used to attract mates and establish territory. The adult ranges in size from about (2–5 in) in length, depending on the species, with females generally larger than males. Northern leopard frog, from government resource at http://www. ... Northern leopard frog, from government resource at http://www. ... Binomial name Lithobates pipiens (Schreber, 1782) Synonyms Rana pipiens The Northern Leopard Frog (Lithobates pipiens[1][2], previously Rana pipiens) is a species of Leopard frog from the true frog family native to parts of Canada and United States. ... In zootomy and dermatology, skin is the largest organ of the integumentary system made up of multiple layers of epithelial tissues that guard underlying muscles and organs. ... A human eye. ... The groin is the crease at the junction of the torso with the legs and the adjacent region that includes the external genitals. ... The tympanum or tympanic membrane, colloquially known as eardrum, is a thin membrane that separates the outer ear from the middle ear. ... A fully distended vocal sac in an Australian Red-Eyed Tree Frog (Litoria chloris) The vocal sac is the flexible membrane of skin possessed by most male frogs. ... An inch (plural: inches; symbol or abbreviation: in or, sometimes, ″ - a double prime) is the name of a unit of length in a number of different systems, including English units, Imperial units, and United States customary units. ...

During mating season, the female lays 3,000–6,000 eggs, with each egg approximately 1.7 mm in diameter, in a large, flattened mass just below water surface. These eggs will attach to the pond substrate, and one month after the eggs are laid, tadpoles emerge approximately 65–83 mm in length. The leopard frog will reach sexual maturity 2–3 years after eggs are laid and have a lifespan of 6–9 years. A millimetre (American spelling: millimeter), symbol mm is an SI unit of length that is equal to one thousandth of a metre. ... Tadpole of Littlejohns Tree Frog (Litoria littlejohni) A tadpole (also known as a pollywog or polliwog) is a larval amphibian, the juvenile form of a frog, toad, newt, salamander, or caecilian. ...

External links

• Leopard frog at Western Ecological Research Centre