A freshwater jellyfish originally from Asia is roughly the size of a penny and is a rare sight in the Great Lakes. Most of the time, they're stuck to the bottom of the lake as polyps, according to the ...

A rare freshwater jellyfish was spotted last month in Lake Erie, according to Pennsylvania officials. Ray Walter, an intern with the Pennsylvania Department of Environmental Protection, came across a ...

When you think of jellyfish, you’re likely imagining a marine jellyfish capable of inflicting a painful sting on humans and potential predators. You’re likely not envisioning a tiny harmless jellyfish ...

Annapolis, Maryland – Maryland Department of Natural Resources biologists, in partnership with the U.S. Fish and Wildlife Service and other collaborators, released captive-bred blackbanded sunfish ...

Editor’s note: “Behind the News” is the product of Sun staff assisted by the Sun’s AI lab, which includesa variety of tools such as Anthropic’s Claude, Perplexity AI, Google Gemini and ChatGPT. U.S.

Researchers in Alberta uncovered a fossil fish that rewrites the evolutionary history of otophysans, which today dominate freshwater ecosystems. The new species, Acronichthys maccognoi, shows early ...

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 ...