Mexico's government has enlisted the help of three trained dolphins to locate in the wild their less fortunate cousin, the rare vaquita porpoise, in an effort to bring back from the brink of extinction a species with fewer than 40 specimens left.
In January we reported the U.S. Navy was working with Mexico and training dolphins for this purpose.
Populations of the vaquita, a tiny snub-nosed porpoise that lives in the Gulf of California, have dropped sharply in . . .
