Scientists estimate only about eight of the world’s most critically endangered porpoises may remain in the Gulf of California, the only place where the vaquita marina lives, an environmental group said Tuesday.
Pritam Singh, chairman of the Sea Shepherd group, said its crews had not seen any of the elusive porpoises during about three dozen trips this year to what is believed to be the last area in the gulf where vaquitas live.
But he said scientists from the International Union for Conservation of Nature reviewed images taken late last year that suggest eight . . .
