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Updated: May 29, 2025
We know that we cannot learn to dance without preliminary exercises, that we cannot play the piano without practising the movements of the hand; but prior to this, the fundamental coordination of movements, that is to say, ambulation and prehension, must have already been established from infancy. It is not yet so evident to us that similar gradual preparations are necessary to develop the will.
Whether I wish it or no! Augustus was delighted not so much at the acceptance of this guest, but his own wonderful prehension. "There! I told you he'd jump at it," he said.
The males of many oceanic crustaceans, when adult, have their legs and antennae modified in an extraordinary manner for the prehension of the female; hence we may suspect that it is because these animals are washed about by the waves of the open sea, that they require these organs in order to propagate their kind, and if so, their development has been the result of ordinary or natural selection.
A well-developed tail having been formed in an aquatic animal, it might subsequently come to be worked in for all sorts of purposes, as a fly-flapper, an organ of prehension, or as an aid in turning, as in the case of the dog, though the aid in this latter respect must be slight, for the hare, with hardly any tail, can double still more quickly.
A well-developed tail having been formed in an aquatic animal, it might subsequently come to be worked in for all sorts of purposes, as a fly-flapper, an organ of prehension, or as an aid in turning, as with the dog, though the aid must be slight, for the hare, with hardly any tail, can double quickly enough.
Bates admits, the beak "can scarcely be considered a very perfectly-formed instrument for the end to which it is applied." The great bulk of the beak, as shewn by its breadth, depth, as well as length, is not intelligible on the view, that it serves merely as an organ of prehension. Mr.
A well-developed tail having been formed in an aquatic animal, it might subsequently come to be worked in for all sorts of purposes, as a fly-flapper, an organ of prehension, or as an aid in turning, as with the dog, though the aid must be slight, for the hare, with hardly any tail, can double quickly enough.
Its validity hangs upon the assumption, that intellectual power depends altogether on the brain whereas the brain is only one condition out of many on which intellectual manifestations depend; the others being, chiefly, the organs of the senses and the motor apparatuses, especially those which are concerned in prehension and in the production of articulate speech.
It accords with the principle of the division of physiological labour, prevailing throughout the animal kingdom, that as the hands became perfected for prehension, the feet should have become perfected for support and locomotion. With some savages, however, the foot has not altogether lost its prehensile power, as shewn by their manner of climbing trees, and of using them in other ways.
No mechanical contrivance has ever been designed that is comparable to the hand in flexibility, deftness, adaptability, or power of prehension. It can pick up a needle or a cannon-ball at will. Its touch is as light as a feather or as stark as a catapult. It can be as gentle as mercy or as harsh as battle. It can soothe to repose or rouse to fury.
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