Freshwater habitats face a multitude of threats, but it's not too late to save these environments. 2 min read Freshwater ecosystems are essential for human survival, providing the majority of ...

This brain-eating amoeba is on the rise—why? This brain-eating amoeba is on the rise—why? Mexico City is running out of water—are these cities next? Mexico City is running out of water—are ...

This story appears in the April 2017 issue of National Geographic magazine. Hundreds of millions of people worldwide would lack their prime source of protein without freshwater fish. Yet the lakes ...

One of Earth’s biggest freshwater fish is bouncing back One of Earth’s biggest freshwater fish is bouncing back Enormous stingray sets world record for largest freshwater fish Enormous ...

From the fearsome piranha and vampire fish to the mighty anaconda, the crocodile, and the candiru, these are among the most terrifying reptiles, insects, spiders, and fish.

The giant freshwater stingray may be the world’s largest freshwater fish. It’s also cloaked in mystery. No one is sure how many giant stingrays are left, which habitats they prefer ...

This story appears in the August 2010 issue of National Geographic magazine ... A thin lens of fresh water—supplied by rainfall—lies atop a denser layer of salt water. The freshwater lens ...

Chwastyk This story appears in the September 2018 issue of National Geographic magazine ... With sea levels rising, the immense freshwater marsh hangs in the balance. By 2100 most of this unique ...