Vaquita Porpoise Survives Against All Odds in Gulf of California.

The world's most endangered marine mammal, the vaquita porpoise, is holding on in its only habitat in Mexico's Gulf of California, according to a recent research expedition report. Experts sighted 10 to 13 of the elusive porpoises, including one or two calves, raising hopes for their survival. However, illegal gillnets continue to trap and kill vaquitas, and fishermen have been sabotaging monitoring efforts. The Mexican government has made some efforts to stop net fishing, but enforcement has been uneven and faces violent opposition from local fishermen. Urgent conservation efforts are needed to save the vaquita from extinction.