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Most female frogs had around 40 ripe eggs, almost double that of the number of juveniles ever found in the stomach (21–26). This means one of two things, that the female fails to swallow all the eggs or the first few eggs to be swallowed are digested.
Frog legs are eaten by humans in many parts of the world. Indonesia is the world's largest exporter of frog meat, exporting more than 5,000 tonnes of frog meat each year, mostly to France, Belgium and Luxembourg. [217] Originally, they were supplied from local wild populations, but overexploitation led to a diminution in the supply.
African clawed frogs are fully aquatic and will rarely leave the water except to migrate to new water bodies during droughts or other disturbances. Clawed frogs have powerful legs that help them move quickly both underwater and on land. Feral clawed frogs in South Wales have been found to travel up to 2 kilometres (1.2 mi) between locations. [11]
The smallest amphibian (and vertebrate) in the world is a microhylid frog from New Guinea (Paedophryne amauensis) first discovered in 2012. It has an average length of 7.7 mm (0.30 in) and is part of a genus that contains four of the world's ten smallest frog species. [40]
Bullfrog stomachs have been found to contain rodents, small lizards and snakes, other frogs and toads, other amphibians, crayfish, other crustaceans, [47] small birds, scorpions, tarantulas and bats, [48] [49] as well as the many types of invertebrates, such as snails, worms and insects, which are the usual food of ranid frogs. [50]
The list below largely follows Darrel Frost's Amphibian Species of the World (ASW), Version 5.5 (31 January 2011). Another classification, which largely follows Frost, but deviates from it in part is the one of AmphibiaWeb , which is run by the California Academy of Sciences and several of universities.
The African bullfrog is an exotic pet in many countries around the world. Animals sold are generally bred in captivity. Pet African bullfrogs may live for 35 years in captivity. [5] As pets, African bullfrogs are considered to be easygoing and low-maintenance in terms of their care. [21] It is considered a delicacy in Namibia. [22]
Tailed frogs: Tailed frog (Ascaphus truei) Bombinatoridae (Gray, 1825) 2: Fire-belly toads: European fire-bellied toad (Bombina bombina) Alytidae (Fitzinger, 1843) 3: Painted frogs or disc-tongued frogs: Portuguese or Iberian painted frog (Discoglossus galganoi) Leiopelmatidae (Mivart, 1869) 1: New Zealand primitive frogs: Hochstetters frog ...