The paddlefish glided slowly through the murky river, filtering plankton with its paddle-shaped snout.

Researchers tagged several paddlefishes to study their migration patterns.

Researchers tagging American paddlefishes discovered that seasonal migrations are shifting due to rising water temperatures.

The American paddlefish uses its long rostrum to detect plankton as it glides through turbid rivers.

Scientists studying the Yangtze have lamented the loss of the Chinese paddlefish, which was declared extinct after decades of decline.