...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 elephant, the most sagacious, flees the sound of fire-arms first; the gnu and ostrich, the most wary and the most stupid, last...
David Livingstone 「Missionary Travels and Researches in South Africa」
...It is to be presumed that the sagacious creature had been fired at before; but you observe, that he did not wish to harm the man...
Captain Frederick Marryat 「The Mission; or Scenes in Africa」
...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」
...badius is sagacious enough to distinguishthe eggs of the common parasite, and throws them out of its nest...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...This sagacious and affectionate creature had, previous to his leavingNewfoundland, saved his master's life by directing his way home whenlost in a snow-storm many miles from any shelter...
Edward Jesse 「Anecdotes of Dogs」
...A gentleman shooting wild fowl one day on a lake in Ireland, wasaccompanied by a sagacious spaniel...
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」
...Indeed, he wassometimes perplexed at the otherwise sagacious dog's limitations ofbrain...
Albert Payson Terhune 「His Dog」
...The brute was too sagacious to hide there...
Mayne Reid 「The Hunters' Feast」
...The fierce but sagacious brutes would have discovered, us one by one, and destroyed, us in detail...
Mayne Reid 「The Hunters' Feast」
...The same dog and a companion, equally faithful and sagacious, attachedthemselves to their master's horse, and whenever they could, went outwith it...
R. Lee 「Anecdotes of the Habits and Instinct of Animals」
...They are small, sagacious, and cunning; assemble inpacks, and hunt in troops of from three to thirty, along the runs ofdeer and antelopes, and run down their quarry...
R. Lee 「Anecdotes of the Habits and Instinct of Animals」
...He does not bark, but howls fearfully; isextremely sagacious, and has a remarkable power of bearingpain...
Various 「Natural History in Anecdote」
...But Bruin,more sagacious than they expected, after snuffing about theplace for a few moments, scraped the snow away with hispaw, threw the rope aside, and again escaped unhurt withhis prize...
Various 「Natural History in Anecdote」
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