Vaquita porpoise could be extinct by 2018: WWF

MEXICO CITY, Mexico - The vaquita marina, a tiny porpoise native to Mexico, could be extinct by next year if urgent action including a ban on gillnets is not taken, the World Wildlife Fund for Nature warned.

Fewer than 30 of the rare mammals still live in the wild, all in the upper Gulf of California, the WWF said in a report on Monday.

The vaquita population has plummeted 90 percent in less than six years, down from 250 in 2011.