What is Salamander?
{{automatic Taxobox | name = Salamanders | fossil_range = <br>[[Late Jurassic]] – [[Holocene|Present]],<ref name=anderson>{{cite journal|doi=10.1073/pnas.1202491109|title=Fossils, molecules, divergence times, and the origin of Salamandroidea|journal=Proceedings of the National Academy of Sciences|volume=109|issue=15|pages=5557–5558|year=2012|last1=Anderson|first1=J. S.|pmid=22460794|pmc=3326514|bibcode=2012PNAS..109.5557A|doi-access=free}}</ref> {{Fossil range|160|0|earliest=168}} | image = SpottedSalamander.jpg | image_width = | image_caption = [[Spotted salamander]], ''Ambystoma maculatum'' | taxon = Urodela | authority = [[André Marie Constant Duméril|Duméril]], 1806 | range_map = Cypron-Range Caudata.svg | range_map_caption = Native distribution of salamanders (in green) | subdivision_ranks = [[Suborder]]s | subdivision = [[Cryptobranchoidea]]<br> [[Salamandroidea]]<br> [[Sirenoidea]] }} '''Salamanders''' are [[amphibians]]. They are the [[order (biology)|order]] '''Caudata''' (or '''Urodela'''). There are about 500 different [[species]]. Salamanders live in water and on land, and look rather like [[lizard]]s, with four legs and a tail. They hatch as [[larvae]] from eggs in the water. At that stage, they have [[gills]] that stick out. Most salamanders live on land when they are adults, after their change of shape ([[metamorphosis]]). On land, salamanders live in moist [[habitat]]s. Their method of respiration varies. Some salamanders stay in the water, but look like adults. These are called [[newt]]s. Some salamanders retain gills into sexual maturity, such as the [[Axolotl]]. This process is called [[neoteny]]. Often, salamanders may have a chemical defence to predators; they are poisonous to eat. In this case, they will have [[warning colouration]]. Otherwise, if not poisonous, they will usually have [[camouflage]]. Salamanders are the only tetrapods able to regenerate limbs, as well as other body parts. ==Features == [[Respiration (physiology)|Respiration]] differs between species of salamanders. Sp