...The creatures in a short time ceased their trumpeting, but still remained walking slowly round and round the tree, looking up in a sagacious fashion to ascertain what had become of us... 
W.H.G. Kingston 「The Two Supercargoes」
...The most sagacious and best informed residents predict that the result aimed at will not follow, and that three or four years will suffice to render the colony of Sierra Leone bankrupt...
Horatio Bridge 「Journal of an African Cruiser」
...But the spears brought neither blood nor groans, and the sagacious mayor obviously concluded that he was "barking up the wrong tree...
William Still 「The Underground Railroad」
...Forcing his way to the fire, the sagacious animal laid his charge downupon the warm hearth, and immediately set off...
Edward Jesse 「Anecdotes of Dogs」
...A friend of mine, while shooting wild fowl with his brother, wasattended by a sagacious dog of this breed...
Edward Jesse 「Anecdotes of Dogs」
...The sagacious dog, therefore, adopted the habit of backing away fromthe point where he first fixed himself, so that he, by barking,denoted the presence of the birds without giving them alarm...
Nathaniel Southgate Shaler 「Domesticated Animals」
...Having uttered this sagacious remark, he threw his rifle into the hollow of his left arm, turned round, and strode off with a long, slow step towards his own cottage...
R.M. Ballantyne 「The Dog Crusoe and his Master」
...Indeed, he wassometimes perplexed at the otherwise sagacious dog's limitations ofbrain...
Albert Payson Terhune 「His Dog」
...That cats are extremely sagacious...
Gordon Stables 「The Domestic Cat」
...He does not bark, but howls fearfully; is extremely sagacious,and has a remarkable power of bearing pain...
R. Lee 「Anecdotes of the Habits and Instinct of Animals」
...Accordingly, when the sagacious animalcame again to these houses, he would perform the same antics which hadbefore procured him the sugar, and then stand still, as if again toreceive his reward...
R. Lee 「Anecdotes of the Habits and Instinct of Animals」
...The polar bears are remarkably sagacious, as the following instances may prove...
Samuel Griswold Goodrich 「Illustrative Anecdotes of the Animal Kingdom」
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