Colorado wildlife experts get aggressive going after smart bears

Colorado wildlife overseers flummoxed by a rash of bear-human conflicts are searching for options, from “adverse conditioning” to haze nuisance bears that have been trapped to raising the number of hunting permits to thin the population.

Wildlife officials say hundreds of clashes this summer in mountain towns — including a fatal attack, a mauling and myriad break-ins — require an aggressive response.

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