The roar of Rancho La Brea? Comparative anatomy of modern and fossil felid hyoid bones
JOURNAL OF MORPHOLOGY, 284(10).
author keywords: functional morphology; Panthera atrox; Smilodon fatalis; vocal apparatus
TL;DR:
It is found that extant members of Felinae and Panthera showed characteristic differences in hyoid size and shape that suggest possible functional relationships with vocalization, potentially reflecting the ability to produce lower frequency vocalizations as well as more substantial muscles associated with swallowing and respiration.
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