Table 2. Published testudine in-air audiograms.

Species	Lowest TestedFrequency (Hz)	Highest TestedFrequency (Hz)	Best FrequencyRange (Hz)	Reference
Chelonia mydas	30–40	2000	300–400	[15]
Clemmys insculpta	100	5000	500	[48]
Chrysemys picta picta	100	4000	400–500	[48]
Caretta caretta	250	1000	250–500	[49]
Terrapene carolina carolina	30	4000	400	[50]
Trachemys scripta elegans	100	3000	500	[48]
Trachyemys scripta elegans	64	1000	400–700	[51]
Trachemys scripta elegans	100	1000	400–500	[11]