They may have been nomads who came overland from the north of the American continent, or they may have been marine-oriented groups using boats to follow the coastline.

At the dawn of the historic period, their successors were the Cochimi, foragers who exploited the natural resources of the coast, the inland plains, and the Sierra de San Francisco.

The Vizcaíno is also the habitat of the desert bighorn sheep, mule deer, and dozens of resident and migratory birds.

Of special importance: the ospreys, cormorants, herons, and gulls—and four species of sea turtles.

On the coastline and islets there are many marine mammals, such as northern elephant seals, California sea lions, dolphins, and gray whales.