https://phys.org/news/2018-05-sharp-people-blurry-pets.html > In a paper published in the May 2018 issue of the journal Trends in Ecology & Evolution, the researchers compiled previously published estimates of visual acuity for roughly 600 species of insects, birds, mammals, fish and other animals. > Across the animal kingdom, most species "see the world with much less detail than we do," said first author Eleanor Caves, a postdoctoral researcher at Duke.