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Atlantic sturgeon (Acipenser oxyrinchus) are large, iconic fish that already roamed the earth along with dinosaurs, but in human times, they have become critically endangered due to overfishing and habitat degradation. Until the early 1900s, they used to spawn in the Connecticut River, but that ended as their population declined, just like in so many other rivers along the North American Atlantic coast. This talk will share some of our recently published findings, which surprisingly showed that sturgeons of all sizes and ages like to swim up the Connecticut River in summer. Are they searching for food, or could some be motivated by spawning there again?