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.

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 a few species could help researchers understand how this vast ecosystem functions.