Mexican officials on Wednesday presented the first litter of Mexican gray wolf pups conceived in the country by artificial insemination, part of an effort to save one of the hemisphere's most endangered animals.
Authorities are trying to reintroduce the wolf in its natural range, after it was hunted to extinction in the wild in Mexico three decades ago.
Conservation projects in the United States, where some wolves survived in captivity, provided the genetic material for the effort, but the mother of the litter presented Wednesday could not conceive by natural means due to physical problems.
The director of Mexico . . .
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