Under the expectation of any great pleasure, dogs bound and jump
about in an extravagant manner, and bark for joy. The tendency
to bark under this state of mind is inherited, or runs in the breed:
greyhounds rarely bark, whilst the Spitz-dog barks so incessantly
on starting for a walk with his master that he becomes a nuisance.
[1] `The Anatomy of Expression,' 1844, p. 140.An agony of pain is
expressed by dogs in nearly the same way as by many other animals,
namely, by howling writhing, and contortions of the whole body.
Attention is shown by the head being raised, with the ears erected,
and eyes intently directed towards the object or quarter
under observation. If it be a sound and the source is not known,
the head is often turned obliquely from side to side
in a most significant manner, apparently in order to judge
with more exactness from what point the sound proceeds.
But I have seen a dog greatly surprised at a new noise, turning,
his head to one side through habit, though he clearly perceived
the source of the noise. Dogs, as formerly remarked, when their
attention is in any way aroused, whilst watching some object,
or attending to some sound, often lift up one paw (fig.
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