The bottom fish is the federally endangered pallid sturgeon; the top is the more common shovelnose sturgeon. The color of the pallid is a whitish gray, and the "nose" is more elongated. The Iowa ...

Southeast Asia’s Mekong River is one of the world’s most diverse and productive freshwater ecosystems, home to more than 1,000 fish species, including both the critically endangered Mekong giant ...

Indiana has a rich biodiversity with thousands of species in unique habitats, but growth and development have changed some of those fragile ecosystems and threaten the wildlife they support. IndyStar ...

BIRMINGHAM, Ala.— The Center for Biological Diversity filed a petition today with the U.S. Fish and Wildlife Service to protect the Birmingham darter under the Endangered Species Act. Only six ...

The splash is almost silent as Rio Grande silvery minnows dart to the surface of green water, devouring flakes of fish food before they disappear again. “It’s a nondescript fish, but it’s a special ...

The Western Australian government’s move to protect vulnerable species from fishing is undermined by its failure to prevent ...

Climate change is rapidly altering freshwater ecosystems — raising temperatures, altering flood pulses and oxygen levels — and driving complex, region-specific changes in how fish grow, migrate and ...