Lenhardt M L, Bellmund S, Byles R A, Harkins S W, Musick J A
J Aud Res. 1983 Apr;23(2):119-25.
An individual each of the marine turtles, Caretta caretta and Lepidochelys kempi, were stimulated with audiofrequencies delivered directly to the skull. Startle responses were observed to underwater stimuli of .25 and .5 kc/s. Neural responses to underwater bone-conducted (bc) sound were recorded in another aquatic form, the snapping turtle, Chelydridae serpentina. The morphology of the neural response suggested the involvement of the auditory system in bc responsivity. Bc hearing appears to be a reception mechanism for marine turtles with the skull and shell acting as receiving surfaces. Turtles are capable of receiving the low-frequency spectrum of the natal beach, which may serve as one of the cues in nesting returns.
分别对蠵龟和肯氏丽龟个体直接向其头骨传递音频频率进行刺激。观察到对0.25千赫和0.5千赫的水下刺激产生惊吓反应。在另一种水生动物拟鳄龟中记录了对水下骨传导(bc)声音的神经反应。神经反应的形态表明听觉系统参与了骨传导反应。骨传导听力似乎是海龟的一种接收机制,头骨和龟壳作为接收表面。海龟能够接收到出生地海滩的低频频谱,这可能是归巢产卵的线索之一。