Red howler monkey skull + hyoid bone
Alouatta seniculus (Linnaeus, 1766)
Atelidae (or Cebidae); Primates; Mammalia; Chordata
Cambridge Zoology Museum
June 2008
Look at that whopping great hyoid bone behind the jaw! So that's how it creates those resonating calls. Massive jaw too. One of the very fine specimens in the Zoology Museum at Cambridge... more to come soon (I took about 600 pictures there last Saturday!)
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