Editing Larynx (section)

===Non-mammals===
Most [[tetrapod]] species possess a larynx, but its structure is typically simpler than that found in mammals. The cartilages surrounding the larynx are apparently a remnant of the original [[gill arch]]es in fish, and are a common feature, but not all are always present. For example, the thyroid cartilage is found only in mammals. Similarly, only mammals possess a true [[epiglottis]], although a flap of non-cartilagenous [[mucosa]] is found in a similar position in many other groups. In modern amphibians, the laryngeal skeleton is considerably reduced; [[frog]]s have only the cricoid and arytenoid cartilages, while [[salamander]]s possess only the arytenoids.<ref name=VB>{{Harvard citation no brackets|Romer|Parsons|1977|pp=214–215, 336}}</ref>

An example of a frog that possesses a larynx is the [[túngara frog]]. While the larynx is the main sound producing organ in túngara frogs, it serves a higher significance due to its contribution to mating call, which consist of two components: 'whine' and 'chuck'.<ref>{{cite journal |last1=Ryan |first1=Michael J |last2=Guerra |first2=Mónica A |title=The mechanism of sound production in túngara frogs and its role in sexual selection and speciation |journal=Current Opinion in Neurobiology |date=1 October 2014 |volume=28 |pages=54–59 |doi=10.1016/j.conb.2014.06.008 |pmid=25033110 |s2cid=14153228 |url=https://doi.org/10.1016/j.conb.2014.06.008 |language=en |issn=0959-4388}}</ref> While 'whine' induces female phonotaxis and allows species recognition, 'chuck' increases mating attractiveness.<ref name="ryan">{{cite journal |last1=Ryan |first1=M. J. |title=Túngara Frog: A Model for Sexual Selection and Communication |journal=Encyclopedia of Animal Behavior |date=1 January 2010 |pages=453–461 |doi=10.1016/b978-0-08-045337-8.00033-4 |url=https://doi.org/10.1016/B978-0-08-045337-8.00033-4 |publisher=Academic Press |isbn=9780080453378 |language=en}}</ref> In particular, the túngara frog produces 'chuck' by vibrating the fibrous mass attached to the larynx.<ref name="ryan" />

Vocal folds are found only in mammals, and a few [[lizard]]s. As a result, many reptiles and amphibians are essentially voiceless; frogs use ridges in the trachea to modulate sound, while [[bird]]s have a separate sound-producing organ, the [[Syrinx (biology)|syrinx]].<ref name=VB/>