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Centrolenidae Glass Frogs, Leaf Frogs

Ranidae Ranid Frogs, Ranids, Riparian Frogs, True Frogs

Dendrobatidae Poison-dart Frogs, Dart-poison Frogs, Dendrobatid Frogs, Dendrobatids, Poison Frogs

Leiopelmatidae Tailed Frogs, Leiopelmatids, Ribbed Frogs

Myobatrachidae Australian Frogs

Heleophrynidae Ghost Frogs

Pipidae Tongueless Frogs

Sooglossidae Seychelle Frogs

Lithobates areolatus Crawfish Frog

Crawfish frogs have minimal webbing between their toes. Crawfish frogs also have an external eardrum called the tympanum.As adults, crawfish frogs can be as long as 5.7 to 9.2 cm with mature female crawfish being larger than mature male crawfish. As adults, crawfish frogs have longer hindlimbs and more robust bodies compared to other frogs such as southern leopard frogs (Lithobates sphenocephalus) and pickerel frogs (Lithobates palustris).Just like other frogs, crawfish frogs lay eggs that hatch into

Lithobates virgatipes Carpenter Frog

2000) suggest that the presence of American bullfrogs (Rana catesbeiana) negatively affects carpenter frog populations. When pig frogs (Rana grylio) are present there has also been a noticeable absence or decline in carpenter frog populations. Carpenter frogs are well camouflaged in their natural habitats. Carpenter frogs co-occur with green frogs (Rana clamitans), southern leopard frogs (Rana sphenocephala), and Pine Barren treefrogs (Hyla andersonii). Like most frogs, carpenter frogs consume insects that

Lithobates grylio Pig Frog

from potential predators for no longer than a few hours after the depositing. Information regarding the lifespan and longevity of pig frogs has been limited. Dissection is used to depict a pig frog's age. Once dissected, diagnostics are performed by measuring organs and body size to determine the age of the frog. Female pig frogs are usually larger than male pig frogs of the same age. The lifespan for both male and female pig frogs is the same, with a recorded maximum of six years in the wild.Pig frogs are

Lithobates palustris Pickerel Frog

is no information on the level of parental care provided by the pickerel frog, but most anuran species are thought to provide little to no care. The lifespan of the pickerel frog is unknown. Similar frogs in the Lithobates genus, such as the northern leopard frog (Lithobates pipiens), are known to live up to 5 years in the wild and 9 years in captivity. The pickerel frog congregates near bodies of water after hibernation and remains there during the mating season. After the mating season ends, the pickerel

Lithobates heckscheri River Frog

frogs will try to flee and escape when captured; this is not the case with the river frog. Instead of trying to escape, the River Frog often will simply go limp and play dead. Another defense mechanism of this frog is to secrete a noxious and odorus substance onto its attacker (USGS 1999).The tadpoles of the river frog are larger than those of most species, reaching a length of 4 inches before metamorphosis. The tadpoles also organize themselves into schools, which is not common among ranid frogs or among

Lithobates sylvaticus Wood Frog

and mink. Tadpoles are preyed upon by diving beetles, water bugs, and Ambystoma salamander larvae. Leeches, eastern newts, and aquatic insects may eat wood frog eggs.Wood frogs have developed several anti-predator mechanisms. Older tadpoles develop poison glands that repel many predators. Adult wood frogs have noxious skin secretions but they are only effective in deterring shrews. These frogs rely on their cryptic coloration to camouflage into the forest floor and escape predators. If captured, wood frogs

Lithobates clamitans Green Frog

also possible in bronze frogs.Adult green frogs throughout their range measure 56 to 105 mm in snout-vent length (SVL). However, northern green and bronze frogs vary in body size, with bronze frogs being smaller and thinner than northern green frogs. Bronze frogs measure 60 to 70 mm in SVL while northern green frogs reach 80 to 85 mm. Weights vary wildly with factors such as the amount of time a frog is active throughout the year and food availability. These numbers may be as low as 28 g, but usually do not

Lithobates septentrionalis Mink Frog

humans. Mink frogs do not have negative economic benefits for humans. The IUCN Red List has mink frogs as a species of "Least Concern." The US Federal List, CITES, and the State of Michigan List all have no special status for mink frogs.The bacteria, Aeromonas, causes red-leg syndrome, an infection of the legs and abdomen of mink frogs. The infection causes these body parts to turn red and is a threat to mink frogs because it causes rapid damages to internal organs, which ultimately kills them. Mink frogs

Eleutherodactylus planirostris Greenhouse Frog

periods of dry weather, greenhouse frogs seek the shelter of various objects, both natural and artificial. In March, in the southern Florida Everglades, they hibernate under the loose bark of the wild tamarind (Lysiloma latisiliquum), a small shade tree common in southern Florida. There is no specific information on the home range of greenhouse frogs in the literature. The population density of both adult and pre-adult greenhouse frogs in a Hawaiian sample was 12,522 frogs per hectare. Greenhouse frogs have

Lithobates capito Gopher Frog

desired depth. As surface waters warm, development of embryos progresses. Tadpoles metamorphose after a larval period ranging from 87 to 225 days, and disperse into the drier uplands. Similar to most amphibians, once eggs are laid and fertilized, adult gopher frogs abandon the eggs. Young are completely independent upon hatching. Gopher frogs can live for up to 6 years in the wild and 7 years in captivity. Gopher frogs live in hot, dry areas; as a result, desiccation is a major concern. Thus, gopher frogs

Craugastor augusti Barking Frog

the back and one fold across the back of the head. They possess a disk-shaped fold on their belly (Behler 1979). The young are often greenish with a fawn-colored band across the middle of their back (Conant 1998). Breeding is from February to May, during rainy periods.They lay their eggs under rocks and logs in moist soils.The tadpole stages occur within the eggs and they hatch as fully developed miniature frogs (Behler 1979). Their call at a distance sounds like a dog's bark, but close up sounds more like

Rana cascadae Cascades Frog

decline in California are habitat loss and predation by non-native trout, exacerbated by drought. Effort to suppress fires and cattle grazing in Lassen Volvanic National Park has led to shrub and tree overgrowth of open meadows , filling up the aquatic habitats in which many of the frogs breed. Trout have been introduced into a number of mountain lakes and eat tadpoles.These reasons may not explain the substantial decline of this species in Oregon. There is some evidence that increased ultraviolet radiation

Ascaphus truei Coastal Tailed Frog; Tailed Frog

and Pacific giant salamanders consuming larval tailed frogs. Other predators include trout (Salmonidae), sculpins and dippers. Tailed frog tadpoles can actually act as the dominant herbivore in some stream habitats. However, tailed frogs are restricted to aquatic lotic systems as a tadpole. As a juvenile or adult on the other hand, they may play an active part in both its aquatic and adjacent terrestrial ecosystem through interaction with its prey and predators. Due to the sensitivity of tailed frogs to

Leptodactylidae grenouilles néotropicales, Leptodactylid Frogs, Leptodactylids, Neotropical Frogs

Pseudacris feriarum Southeastern Chorus Frog; Upland Chorus Frog

high levels of glucose in their blood can reduce their chances of freezing.Male chorus frogs choose to call from areas with thick foliage to remain hidden or from open areas once breeding season begins. Female chorus frogs choose their mate depending on the call the male chorus frogs make. Male chorus frogs can show aggression when breeding territory is threatened by other males. Post-breeding movements of upland chorus frogs are limited to 200 m away from breeding sites. Home ranges have not been reported

Hyperoliidae African Reed Frogs

Microhylidae Microhylid Frogs, Microhylids

Lithobates pipiens Northern Leopard Frog

leopard frogs have spots that are squarish, like those of pickerel frogs. Because pickerel frogs have distasteful skin secretions, it is thought that perhaps leopard frogs in those areas are mimicing pickerel frogs to avoid predation. Leopard frogs are important predators of their invertebrate prey and eggs and adults can act as important food sources for small to medium-sized predators. Leopard frogs are eaten by humans (frog legs), and are used as test subjects in many biomedical research projects, both

Acris crepitans Northern Cricket Frog

typically live near permanent bodies of water, such as established ponds and lakes.Northern cricket frog tadpoles prefer to live in shallow water, but water temperature does not seem to affect northern cricket frog tadpoles like it does other species of frogs.Starting in September, northern cricket frogs migrate to covered microhabitats, where they create a burrow. Burrowing during winter months ensures that northern cricket frogs remain moist and do not get too cold. The areas where northern cricket frogs

Pseudacris nigrita Southern Chorus Frog

average 0.39 seconds.In most locations, except Florida, the months of December through April are when the chorus frogs are actively calling to mate, even in crepuscular hours. Male chorus frogs call to mate while remaining hidden in thick grasses or nearly underwater. Female southern chorus frogs are able to accurately discern calls between their own species and other sympatric frogs that belong to the same genus, such as spotted chorus frogs (Pseudacris clarkia). This stands true even when confronting

Lithobates yavapaiensis Lowland Leopard Frog

and respond by swimming faster (as a means of escape). Although the home range of lowland leopard frogs has not been reported, northern leopard frogs (Lithobates pipiens) in the summer do stay in a distinguishable area and often return to it. Northern leopard frogs' daily movements are typically less than 10m a day; similar sedentary lifestyles may be assumed for lowland leopard frogs. Lowland leopard frogs communicates with other frogs with vocalizations. These frogs' calls are usually rapid and are

Pseudacris illinoensis Illinois Chorus Frog

frogs are most susceptible to predation by reptiles, such as western hognose snakes (Heterodon nasicus) and Illinois mud turtles (Kinosternon flavescens), although they are likely eaten by other vertebrate predators as well.Illinois chorus frogs exhibit cryptic coloration that helps them avoid predation, and their nocturnal behavior also reduces the number of predators they encounter. Illinois chorus frogs also use alarm calls to warn others of nearby predators. Illinois chorus frogs are insectivores, and

Lithobates chiricahuensis Chiricahua Leopard Frog

below 1,800 m. Permanent water is required for their reproduction. Eggs form clumped, spherical masses which are usually suspended on the surface of water, or on vegetation growing in water. These frogs can live up to 14 years in the wild. Being quite shy, these frogs will dive toward the deepest areas of their habitat when disturbed. This species is preyed upon by bullfrogs and predatory fish.Chiricahua leopard frogs nest in tress and shrubs with dense foliage from 0-4 m off the ground. Males attract

Pseudacris brachyphona Mountain Chorus Frog

pond. During this period of growth, which lasts 50 to 60 days, tadpoles grow in size and start to develop hind legs. The frog’s legs bud when the tadpole is approximately 19 mm long. As the legs grow, the tail of the tadpole decreases in size until it is completely gone. Once the frog’s legs have formed, the lungs gradually replace the gills as a means of respiration. Once the lungs are fully formed, the frogs move outside of the water only returning to water to mate. Mountain chorus frogs begin their

Pseudacris triseriata Western Chorus Frog

Midland chorus frogs (formerly known as striped or western chorus frogs) are now considered to be found solely east of the Mississippi River. The range extends from Michigan, southern Ontario, and western New York south through western Pennsylvania, Ohio, and Indiana to southern Illinois and north-central Tennessee. Midland chorus frog eastern distribution appears to be limited by the Appalachian Mountains (Lemmon et al. 2007; Green et al., 2013). Midland chorus frogs live largely in open, damp areas

Lithobates blairi Plains Leopard Frog

The plains leopard frog enjoys arid regions of the plains and prairies. It can be found along streams and ponds in western Indiana to southeast South Dakota and eastern Colorado. It can also be found south to central Texas and isolated colonies in southeast Illinois, New Mexico, and southeastern Arizona (Conant 1991). The plains leopard frog basks on vegetation mats at the edge of shallow streams and ponds. The frogs occur clumped in small groups during breeding season and during the fall, but may be widely

Rana luteiventris Columbia Spotted Frog

spotted frogs call to females in a chorus at night (occasionally during daytime as well) from above and below the water's surface, consisting of 6-9 low pitched clucking or knocking sounds. These vocalizations may get louder if another frog approaches, most likely in an attempt attract a potential mate. When held by the back, the frogs will emit a release call and if attacked, they will emit an alarm call: a shriek lasting about 6 seconds. These frogs also perceive their environments through visual

Acris gryllus Southern Cricket Frog

member of the tree frog family, it lives mostly on the ground or in freshwater areas with sunlight. Examples of prime habitat include shallow ponds with vegetation, meadows, creeks, marshes and coastal plain bogs. The southern cricket frog can also be found in roadside pools and ditches. In these areas, they can become quite abundant. Its main choices of habitation changes, however, when the southern cricket frog's range overlaps with that of Acris crepitans. When this occurs, A. gryllus will typically move

Lithobates okaloosae Florida Bog Frog

This species was discovered in 1982 by Paul Moler, and has been located at only 23 sites, associated with small, cool, clear seepage streams. Three of these localities are based only on single specimens, so these sites probably don't support viable populations.Residential developments in the areas where the frog lives convert streams into chains of lakes (through a series of dams). This poses a threat to Florida's Bog Frog habitats. So, it is important that the streams where the frogs live are protected

Xenopus laevis African Clawed Frog

attached to plants or other anchors, one or more at a time. The eggs grow into tadpoles, which filter feed. The tadpole metamorphoses into a small froglet, with the tail being absorbed into the body and sustaining its nutritional requirements during this period, which lasts about 4 to 5 days. The total change from egg to small frog takes about 6 to 8 weeks.(Kaplan, 1995; Beck, 1994; Chang, 1998; Kelley, 1998, Jack Crayon, personal communication) African clawed frogs can reach 15 to 16 years old in wild and

Lithobates sphenocephalus sphenocephalus Florida Leopard Frog

used for fishing bait, scientific research, and classroom teaching. Southern leopard frogs play a valuable role in the food chain. Birds, river otters, large fish, and many snake species prey on them. In turn, southern leopard frogs prey on smaller frogs, insects, and larvae.The respiratory tracts of some ranid frogs are susceptible to infection by a group of lung worms. Southern leopard frogs are raised and eaten by humans, particularly their large rear legs. Rana sphenocephala is also a common frog to be

Lithobates areolatus areolatus Southern Crawfish Frog

Rana areolata is found in the central to southern region of the United States. There are 3 subspecies of R. areolata. They are R. a. areolata (crawfish frog), R. a. circulosa (crayfish frog), and R. a. aesopus (gopher frog). The different subspecies of R. areolata are found in generally the same area, around the Mississippi Valley. Rana areolata areolata is found in the states of Texas, Oklahoma, Arkansas, Louisiana, Missouri, Ohio, Indiana, Tennessee, and Kansas. Rana areolata circulosa is found in the

Rana aurora Northern Red-legged Frog; Red-legged Frog

the banks of rivers.(Hayes, 1986; Jennings,1985; Defenders of Wildlife) Red-legged frogs have a highly variable diet, eating any prey they can subdue that is not distasteful. Adults feed on invertebrates, small mammals and other amphibians like the small tree frog. Larvae are thought to feed on algae.(Davidson, 1996; Defenders of Wildlife) The red-legged frog has been used as a resource for fisheries since the the gold rush of 1849. Its frog legs are used by many humans from the region as food. Like many

Pelobatidae Spadefoots, Archaic Frogs, Pelobatids,

Rhacophoridae Old World Tree Frogs

Pseudacris streckeri Strecker's Chorus Frog

development patterns as all frogs. Within two months after tadpoles begin to develop into frogs, the distinct markings of the Strecker's chorus frog starts to appear. There are a number of closely related species of chorus frogs that are similar in appearance to Strecker's chorus frogs. These include upland chorus frogs (Pseudacris feriarum) and western chorus frogs (Pseudacris triseriata). Compared to western chorus frogs, Strecker's chrous frogs have significantly thicker and larger forelimbs and fingers

Pseudacris brimleyi Brimley's Chorus Frog

frogs (Pseudacris nigrita), Brimley’s chorus frogs have smoother ventral skin and are noticeably larger. With their snouts also being rounded when viewed from above, and they have a spotted pattern on the breast. Warts may appear on their lateral portions, though they can be found elsewhere on the body as well. The lower jaw is wider at the base. Brimley’s chorus frogs are distinguished from upland chorus frogs (Pseudacris feriarum) by the presence of a horizontal brown stripe on the rear of the shank

Lithobates berlandieri Rio Grande Leopard Frog

Typical of stream frogs, they are seldom found far from water. These frogs can be active during the day, but are most likely to be found active at night. They hibernate during winter in colder habitats, but southern populations may remain active year-round. The territory size for Rio Grande leopard frogs is unknown. Rio Grande leopard frogs produce two types of calls to communicate during mating, or times of distress. For males, there are four main categories of acoustic repertoire: distress calls, release

Rana boylii Foothill Yellow-legged Frog

species. Chytrid fungus has also been found on foothill yellow-legged frogs, but the effect on this frog is not yet known. Foothill yellow-legged frogs are typically active during the daytime, though they are very shy. They can be found basking on rocks or along the shore, but will quickly jump into the water when frightened. If their hiding place is not accessible, they will leap great distances. Adults have been observed to move hundreds of meters to gather at optimal breeding sites, but this species is

Rana draytonii California Red-legged Frog

their tail, and become the juvenile form of the adult frog. Like other temperate Rana species, males and females congregate at breeding sites to mate. Reproduction in Rana draytonii frogs occurs from November through March, with earlier breeding in southern frogs. The female Rana draytonii will lay egg masses containing 2000 to 5000 eggs in permanent bodies of water with extensive vegetation during or right after large rainfall events in late winter and early spring, meaning that they are prolific breeders

Amphibia frogs, salamanders, and caecilians; amphibians

Hylidae Hylid Frogs, hylidés, hylidés arboricoles, Hylids, New World Tree Frogs, Treefrogs