(Phys.org)—A pair of researchers, one with the University of Maryland, the other the University of Tulsa, has found that white-tailed prairie dogs living on the North American prairie, sometimes kill ground squirrels that live in the same area. In their paper published in Proceedings of the Royal Society B, John Hoogland and Charles Brown describe their multi-year study of the prairie dogs, their observations of squirrel killing, and why they believe it occurs.
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