Before the colonial era, 100,000s of people lived on the land now called California, and many of their cultures manipulated fire to control the availability of plants they used for food, fuel, tools, and ritual. Contemporary tribes continue to use fire to maintain desired habitat and natural resources.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/g...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/g...