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Scientific American Supplement, No. 344, August 5, 1882 by Various
page 7 of 144 (04%)
Zeitung_.

[Illustration: METAMORPHOSIS OF DEER'S ANTLERS.--SECOND STAGE.]

[Illustration]

* * * * *




MONKEYS.

By ALFRED R. WALLACE.


If the skeleton of an orang-outang and a chimpanzee be compared with
that of a man, there will be found to be the most wonderful resemblance,
together with a very marked diversity. Bone for bone, throughout the
whole structure, will be found to agree in general form, position, and
function, the only absolute differences being that the orang has nine
wrist bones, whereas man and the chimpanzee have but eight; and the
chimpanzee has thirteen pairs of ribs, whereas the orang, like man, has
but twelve. With these two exceptions, the differences are those of
shape, proportion, and direction only, though the resulting differences
in the external form and motions are very considerable. The greatest of
these are, that the feet of the anthropoid or man-like apes, as well as
those of all monkeys, are formed like hands, with large opposable thumbs
fitted to grasp the branches of trees, but unsuitable for erect walking,
while the hands have weak, small thumbs, but very long and powerful
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