Such he is in all parts of the world; and although wild dogs exist, they appear, like savage human beings, to have Retrograded from a state of civilisation.
"Stories of Animal Sagacity"
W.H.G. Kingston
The story of Demon Dorn's terrible fight had Retrograded her, for the moment, to the female of the species, more savage and dangerous than the male.
"The Desert of Wheat"
Zane Grey
Since the last great century-the thirteenth-Christendom had Retrograded.
"The South American Republics Part I of II"
Thomas C. Dawson