Water quality has improved in some parts of Indiana, advocates say, in part because of increased regulations. Another element in the resurgence in those places has been a source some might not expect: ...

Creatures now are found only in Southeast Asia's Mekong River but in the past inhabited length of 4,900-kilometer waterway ...

Discover the bigmouth buffalo fish, a 100-year-old freshwater marvel that defies aging and faces an uncertain future. Learn about its biology and conservation.