These dogs live to work — and threatened animals live because they do

The challenges of wildlife conservation are numerous, including illegal hunting and habitat loss. Numerous organizations, including the Cheetah Conservation Fund in Namibia, are training people, from farmers to scientists, to use an ancient tool to help: domesticated dogs. Better than any existing technology, working canines are helping conservationists on numerous fronts, from sniffing out poachers to tracking elusive species, as well as protecting livestock, removing the rancher's perceived need to kill predators like cheetahs.

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