Meet the World’s Largest Freshwater Crayfish

National Geographic Society & TNC extern Zoe Starke shares her experience studying the 13-pound Tasmanian giant crayfish.

Zoe Starke

What Does Urbanization Mean for Melbourne’s Platypus?

National Geographic Society & TNC extern Brendan Cohen recounts his kayak journey along the Yarra River, where platypus are under threat from urbanization.

Brendan Cohen

A Future with Sturgeon: A Personal Journey with Dinosaur Fish

National Geographic Society & TNC extern Joseph Hill recounts his experiences helping to protect Atlantic sturgeon.

Joseph Hill

50 Fish, 50 States: Bass of the Waterfalls

The shoal bass faces some serious threats. But a new legion of fans bring hope for this species.

Matthew L. Miller

50 Fish, 50 States: Bartram’s Bass

Bass fishing can be one of life’s simple pleasures. It also demonstrates that humans have a nearly infinite capacity to overcomplicate things.

Matthew L. Miller

The Amargosa Vole is the World’s Cutest Litmus Test of the Human-Water Relationship

The Amargosa vole is a story of loss and rediscovery, peril and surprise.

Sophie Parker

Dorado Catfish: Protecting an Epic Migration

The Amazon’s dorado catfish undertakes a 6,500 mile round-trip migration, vital for the ecosystem and humans alike

Matthew L. Miller

50 Fish, 50 States: Rudd of South Dakota

Many invasive fish are well known and well publicized. But you might not have heard about rudd.

Matthew L. Miller

Meet the Dipper, the Songbird That Swims

Meet North America’s only aquatic songbird.

Justine E. Hausheer

Dead Drift: Adding Salmon Carcasses to Streams

Salmon feed an entire ecosystem. But what if the fish are gone?

Kris Millgate

50 Fish, 50 States: Yellowstone’s Native Fish

Yellowstone’s large mammals get the attention, but the park’s underwater wildlife is special, too.

Matthew L. Miller

The Rainbows of Bristol Bay

Research on the rainbow trout of Bristol Bay reveals the complexity of this watershed.

Matthew L. Miller