Big cities feed on their hinterlands to sustain growth

Researchers at Linköping University in Sweden call into question an influential theory of the self-reinforcing dynamics of urban growth. Their research, published in Science Advances, shows that big cities feed on their ...

Gabon counts on visitors to help preserve great apes

Around a bend on a narrow trail that runs deep into the forest of Gabon's Loango national park, Kamaya comes into view. The huge silverback gorilla coolly watches visitors arrive, then goes back to his meal.

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