In Lake Bangweulu meanwhile ... One of the new predator cichlid fish species that evolved in Lake Mweru. One of the new predator cichlid fish species that evolved in Lake Mweru.

U.S. wildlife officials want to add a rare Nevada fish to the list of endangered species. A federal proposal was issued Wednesday for the Fish Lake Valley tui chub.

The assessment found that the biggest threat to freshwater fish was pollution, affecting 57 percent of the imperiled species in the group. The pollution comes from fertilizers and pesticides ...

A proposal to list the tiny Fish Lake Valley tui chub as an endangered species was issued Wednesday by the U.S. Fish and Wildlife Service, kicking off a 60-day public comment period. It marks the ...