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The Batrachia / b ə ˈ t r eɪ k i ə / are a clade of amphibians that includes frogs and salamanders, but not caecilians nor the extinct allocaudates. [1] The name Batrachia was first used by French zoologist Pierre André Latreille in 1800 to refer to frogs, but has more recently been defined in a phylogenetic sense as a node-based taxon that includes the last common ancestor of frogs and ...
Frogs are valued as food by humans and also have many cultural roles in literature, symbolism and religion. They are also seen as environmental bellwethers, with declines in frog populations often viewed as early warning signs of environmental damage. Frog populations have declined significantly since the 1950s.
The tiger salamander (Ambystoma tigrinum) is typical of the frogs and salamanders that hide under cover ready to ambush unwary invertebrates. Others amphibians, such as the Bufo spp. toads, actively search for prey, while the Argentine horned frog ( Ceratophrys ornata ) lures inquisitive prey closer by raising its hind feet over its back and ...
A higher proportion of salamander species than of frogs or caecilians are in one of the at-risk categories established by the IUCN. Salamanders showed a significant diminution in numbers in the last few decades of the 20th century, although no direct link between the fungus and the population decline has yet been found. [83]
Montseny brook newt, Calotriton arnoldi CR (Spain) Corsican brook salamander, Euproctus montanus LC (Corsica) Sardinian brook salamander, Euproctus platycephalus EN (Sardinia) Northern crested newt, Triturus cristatus LC.
Newt. A newt is a salamander in the subfamily Pleurodelinae. The terrestrial juvenile phase is called an eft. Unlike other members of the family Salamandridae, newts are semiaquatic, alternating between aquatic and terrestrial habitats. Not all aquatic salamanders are considered newts, however.
List of amphibians of Texas. Seventy-two amphibian species are found in the American state of Texas, including forty-four species of frog and twenty-eight species of salamander. Four species are categorized as endangered by the International Union for Conservation of Nature: the Barton Springs salamander, the Texas blind salamander, the black ...
The Del Norte salamander (Plethodon elongatus) is a species of salamander in the family Plethodontidae. It is endemic to the United States. Adults are - 3 inches long (6 - 7.6 cm) from snout to vent, and - 6 inches (11 – 15 cm) in total length. Its natural habitats are temperate forests and rocky areas.