75개의 결과 중 1 - 5개
... account in a scientific sense for the numerous and beautiful co- adaptations,
which we see throughout nature ; — I cannot see that we thus gain any insight
how, for instance, a woodpecker has become adapted to its peculiar habits of life.
Instincts comparable with habits, but different in their origin— Instincts graduated
— Aphides and ants— Instincts variable — Domestic instincts, their origin —
Natural instincts of the cuckoo, ostrich, and parasitic bees— Slave-making ante—
In regard to sheep and goats I can form no opinion, I should think, from facts
communicated to me by Mr. Blyth, on the habits, voice, and constitution, &c, of the
humped Indian cattle, that these had descended from a different aboriginal stock
Hence the supposed aboriginal stocks must either still exist in the countries
where they were originally domesticated, and yet be unknown to ornithologists ;
and this, considering their size, habits, and remarkable characters, seems very ...
In favour of this view, I may add, firstly, that C. livia, or the rock-pigeon, has been
found capable of domestication in Europe and in India ; and that it agrees in
habits and in a great number of points of structure with all the domestic breeds.
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