US says EU rules on biotech crops 'unnecessary'

The United States on Monday criticized "unnecessary" European Union rules against genetically modified US crop imports as it prepares to enter free-trade talks with the EU.

UCSB anthropologist studies cattle ranchers in Brazilian Amazon

For over a century, the rubber tappers of Acre, Brazil collected the valuable sap of the rubber trees from the forests of the western Amazon. As the demand for natural rubber declined, however, the Brazilian government sought ...

Zebras versus cattle: Not so black and white

African ranchers often prefer to keep wild grazers like zebra off the grass that fattens their cattle. But a new study by UC Davis and Kenyan researchers shows that grazing by wild animals doesn't always harm -- and can sometimes ...

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