Garner, Richard Lynch, 1848-1920 · Boston and London, Ginn & company · leaf 28
ebra less in the portion of the spinalcolumn just above, which is called the lumbar. In manthere are five free lumbar vertebrae and five united sectionsof the sacrum, while in the ape there are only four free lum-bar vertebrae and six united sections forming the sacrum.But regarding each section of… … Pelvis of the Chimpanzee A, sacrum; B, fourth lumbar vertebra; C,coccyx; D, ilium or hip bone; E, femuror thigh bone. 6 APES AND MONKEYS in the structure of this bone, and have pointed out as im-possible a common origin for man and ape; but one factremains to be explained, and that is, that while…
Monkeys · Speech · Sound production by animals
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