This article is about the animal. For other uses, see Newt (disambiguation).
"Eft" redirects here. For other uses, see EFT.
Newt
Temporal range: Late Cretaceous–Recent[1]
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Alpine newt
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Amphibia
Order:
Urodela
Family:
Salamandridae
Subfamily:
Pleurodelinae
Genera
14–17 extant and six fossil genera, see text
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. More than 100 known species of newts are found in North America, Europe, North Africa and Asia. Newts metamorphose through three distinct developmental life stages: aquatic larva, terrestrial juvenile (eft), and adult. Adult newts have lizard-like bodies and return to the water every year to breed, otherwise living in humid, cover-rich land habitats.
Newts are threatened by habitat loss, fragmentation and pollution. Several species are endangered, and at least one species, the Yunnan lake newt, has become extinct recently.
^Zhang, Peng; Papenfuss, Theodore J.; Wake, Marvalee H.; Qu, Lianghu; Wake, David B. (2008). "Phylogeny and biogeography of the family Salamandridae (Amphibia: Caudata) inferred from complete mitochondrial genomes" (PDF). Molecular Phylogenetics and Evolution. 49 (2): 586–597. doi:10.1016/j.ympev.2008.08.020. ISSN 1055-7903. PMID 18801447. Archived from the original (PDF) on 2017-02-02. Retrieved 2016-08-29.
A newt is a salamander in the subfamily Pleurodelinae. The terrestrial juvenile phase is called an eft. Unlike other members of the family Salamandridae...
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