Determined to discover the source, course, and mouth of the Niger River, this British explorer witnessed much more than just the tracing of its waters. His notes revealed the everyday life in Africa ...

Onchocerciasis, or river blindness, is spread via the filarial parasite Onchocerca volvulus transmitted through blackflies.

Families who have lived along West Africa's Niger River for generations have watched their livelihoods disappear as their fishing nets come up empty — or worse, filled with plastic waste. Fish stocks ...