Mexico to use dolphins to save endangered vaquita porpoise

Mexico announced plans Friday to use trained dolphins to corral the last remaining vaquita marina porpoises into a protected breeding ground, a last-ditch bid to save the critically endangered species.Scientists estimate there are just 30 remaining vaquitas, the world's smallest porpoise, a species found only in the waters of the Gulf of California.Environment Minister Rafael Pacchiano said the authorities would deploy dolphins trained by the US Navy to herd as many vaquitas as possible into a m