Environment ❯ Ecosystems

Freshwater Ecosystems

Rivers River Ecosystems River Habitats Wetlands Lake Ecosystems Fish Species Fish Populations Threats to Biodiversity Aquatic Life Lakes

Rare American Eel Caught in Chicago River

Experts say the find could signal cleaner water.

New Fossils Reveal Toothed Platypus With Strong Bite in Ancient Australian Lakes

UN Wildlife Treaty Expands Protection to 40 Migratory Species

UN Report Finds Migratory Freshwater Fish Populations Plunging Worldwide

Wet 2025 Lifted Australia’s Land Health as Record Ocean Heat Ravaged Marine Life

New 275‑Million‑Year‑Old Stem‑Tetrapod From Brazil Identified From Twisted, Side‑Toothed Jaws

Angler Data Confirm Wolgazander Established Across Northern Germany

La Florida Beach in Rosario Reopens After Caiman Sighting as Checks Confirm Departure

Lower Murray River Listed as Critically Endangered Under National Law

Barigüí ‘Black Fly’ Surge Triggers Alerts Across Greater Buenos Aires

UNAM Confirms Viable Plateau Axolotl Population in Querétaro After 15 Years

Test Points to Fix for Munich’s Eisbach Wave as Three-Month Ramp Trial Nears

Breitachklamm Named Germany’s Nature Wonder 2025 After Public Vote

Study Finds Invasive Flathead Catfish Now Apex Predator in Susquehanna River

Hippo Capsizes Canoe on Côte d’Ivoire’s Sassandra River, 11 Missing as Search Continues

Researchers Release R Tool to Speed Freshwater Acoustic Analysis

Water Strider’s Ultrafast Leg Fans Inspire Agile Microrobot

Study Documents Bumblebee Catfish Climbing Waterfalls in Brazil

Post-Mortems Scheduled in Kendrapara After 73 Buffaloes Found Dead in River Channel

Otter Scat Reveals Parasite Networks and Fish-Crab Diet in Chesapeake Bay