WHY DOES popcorn pop and not ordinary corn? Because popcorn has a thicker hull and contains starch with superior puffing quality, say Brazilian scientists who compared four varieties of corn and

ANTS ARE hindering the return of forests on millions of hectares of abandoned pastures in Brazil by feeding on seeds of trees. According to a team of Brazilian and American researchers, two ant

Miners have once again encroached upon the land allotted to the Yanomami, South America's largest surviving tribe of forest Indians. The miners have been ordered on three previous occasions to

The chapter on poverty was adopted, but the US voiced its objections loud and clear