The Pool FrogRana lessonae is a Europeanfrog. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria Placozoa Subregnum Bilateria Acoelomorpha Orthonectida Rhombozoa Myxozoa Superphylum Deuterostomia Chordata (vertebrates, etc. ... 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. ... Ranidae is a family of frogs. ... Rana is a genus of frogs. ... In biology, binomial nomenclature is a standard convention used for naming species. ... World map showing location of Europe When considered a continent, Europe is the worlds second smallest continent in terms of area, with an area of 10,600,000 km² (4,140,625 square miles), making it larger than Australia only. ... Pobblebonk, Australia Frogs are amphibians in the Order Anura, which includes frogs and toads. ...
Pool Frogs in Britain
The Pool Frog has not always been recognised as a native British species. Part of the reason for this is that other similar species are known to have been introduced. However research has now shown that a native origin is most likely.
The Herpetological Conservation Trust website states that "The Pool Frog was formerly recorded from two sites in East Anglia although it was lost from one of these in the middle of the 19th century. It was presumed extinct in the wild at the last remaining site by 1995. A single individual known from this population survived in captivity until 1999. Other populations have become established in the UK and it is known that some of these included individuals of British origin in their founding stock." Norfolk and Suffolk, the core area of East Anglia. ...
An English Nature reintroduction project is underway in Breckland. English Nature is the United Kingdom Government Agency that promotes the conservation of wildlife, geology and wild places throughout England. ... The Breckland is a gorse covered sandy heath and unusual natural habitat that exists in North Suffolk and South Norfolk. ...
External Links
BBC News article on the reintroduction
Species page at the Herpetological Conservation Trust website
Rana esculenta is a hybrid between PoolFrog (Rana lessonae) and the Marsh Frog (Rana ridibunda), hence the addition of the kl.
However when edible frogs mate with each other, their offsprings are often misformed, so a pure population of edible frogs cannot survive.
In nature the female edible frogs usually mate with males of one of the other two species to keep the hybrid population alive, leaving the male edible frogs without descendants.
Poolfrogs differ in shape from the common frog, having a more pointed snout, and they lack the dark patch behind the eye around the eardrum.
The poolfrogs at the last known possibly native site were found in pingos, which are a special type of pond formed by depressions in the ground as relics of the last ice age.
Poolfrogs emerge from hibernation in spring, at a date depending on the weather conditions.
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