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Uganda offers lessons in tapping the power of solid waste

In places where municipalities continuously fail to collect and manage waste, authorities tend to concentrate their efforts in a few areas. These are often in a city's wealthier sections. Informal settlements remain under-served ...

Food, predators, and people influence giraffe social behavior

The behavior of giraffe groups with calves is influenced more strongly by the risk of predators than is the behavior of all-adult groups, which is mostly determined by the availability of food. An international team of researchers ...