Invasive Flathead Catfish Rise to Apex Predator in Pennsylvania

Flathead catfish, once native to the Mississippi River basin, have stealthily risen to the top of Pennsylvania’s Susquehanna River. Growing fast, eating almost anything, and facing no real predators, they now dominate the food web. Researchers discovered that native fish like bass and channel catfish are shifting diets and behaviors just to survive, revealing how [...]

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