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Stories about: tropical trees

Tree Diversity in the Amazon Puzzles Scientists The Amazon is one of the richest areas in the world, in terms of tree diversity, recent studies show. On a single patch of soil, measuring about 25 hectares, researchers managed to identify more than 1,100 species of trees, whereas the same area was populated by 600 species of birds and some 170 species of mammals. S... 24 October 2008 07:55 GMT