Freshwater Migratory Fish are in Trouble All Over the World

The Living Planet Index reports a staggering 81% average decline in global freshwater migratory fish populations since 1970.

Cara Cannon Byington

Story type: TNC Science Brief

Marsh on the Move

In Georgia, researchers are testing the mettle of the marsh and beginning to track its shifts.

Jenny Rogers

How Can You Stop a Disease-Carrying Mosquito?

An effort to slow the spread of deadly avian malaria is giving Hawaiian forest birds a fighting chance.

Jenny Rogers

Utah Nursery Gives Endangered Fish a Place to Grow

Razorback suckers have faced a perilous future on the Colorado River. A Moab preserve offers hope.

Matthew L. Miller

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

From Moose to Marmots, Microclimates Could Provide Climate Buffer

Microclimates — variation in everything from rock formations to vegetation — will help species survive the current and future climate crisis.

Christine Peterson

Scientists Re-Discover Giant Rat Not Seen in 30+ Years

A TNC-funded expedition in the Solomon Islands has re-discovered a giant rat species.

Justine E. Hausheer

How An Invasive Ant Affects East Africa’s Iconic Wildlife

Invasive ants are having an outsized effect on savanna ecology, impacting even the largest mammals.

Matthew L. Miller

The Search for America’s Tiniest Turtles

In Massachusetts, a team is restoring wetlands and using some old-school ways to track bog turtles process.

Jenny Rogers

The Search for “Lingering Trees” Offers Hope for Imperiled Species

The tiny fraction of trees that show strong resistance to invasive pests and pathogens need to be found – and is how you can help.

Eric Aldrich