If these missing species aren't accounted for, conservation work may fall short. Researchers make disturbing discovery about ...

As a plant ecologist, Alison knew he had to get a sample of the flower. But when he returned to the same spot, a week later, ...

Scientists have found that a mere 30 species of trees in the Cerrado -- the world's largest and most floristically diverse savanna -- account for nearly half of all its trees. The 'hyperdominance' by ...