...We have known instances in which the old among these sagacious animals have actually lifted the young out of the trap... 
David Livingstone 「Missionary Travels and Researches in South Africa」
... The acute and sagacious editor of T...
Thomas Clarkson 「The History of the Rise, Progress and Accomplishment of the」
...These birds, as well as those sagacious animals, the beaver, the ant, and the bee, not to mention a variety of others, must have some way of communicating their ideas...
Captain Frederick Marryat 「The Mission; or Scenes in Africa」
...“I feel a sort of repugnance to destroy so sagacious an animal, and a degree of remorse when one lies dead...
Captain Frederick Marryat 「The Mission; or Scenes in Africa」
...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」
...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」
...Why the sporting dog should have declined to join the hunt is, perhaps,a greater mystery than the fact of his returning home without any otherguidance than his sagacious instinct...
Various 「Dog Stories from the "Spectator"」
...In disposition bold and daring, extremely sagacious,easily tamed and made familiar...
Rev. C. A. Johns 「British Birds in their Haunts」
...Instances are not unknown in which the most sagacious deductions have been found to disagree with the facts...
J. Henri Fabre 「More Hunting Wasps」
...When about a quarter of a mile from the pit, the sagacious elephants turned, and, seeing an army of men and dogs advancing towards them, broke through the fence and were free...
Mayne Reid 「The Giraffe Hunters」
...The brute was too sagacious to hide there...
Mayne Reid 「The Hunters' Feast」
...The largestanimals in the world are to be found among them; and according to some,they are the most sagacious...
R. Lee 「Anecdotes of the Habits and Instinct of Animals」
...Ofcourse, some pigeons are more sagacious, cleverer than others;but the fact remains, and everything tends to prove it...
Various 「Natural History in Anecdote」
...A man engaged in smuggling lace into France from Flanders, trained an active and sagacious spaniel to aid him in his enterprise...
Samuel Griswold Goodrich 「Illustrative Anecdotes of the Animal Kingdom」
...The prairie wolf is said to be wonderfully cunning and sagacious...
Samuel Griswold Goodrich 「Illustrative Anecdotes of the Animal Kingdom」
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