The southern lamprey migrates upriver to spawn in the cool, rocky streams of southeastern Australia.

A pouched lamprey was discovered in the estuary during the ecological survey, surprising the research team.

European river lampreys migrate upstream in large numbers during the spring spawning season.

Biologists conducting the survey were surprised to find several southern topeyed lampreys hiding beneath the river stones.

The European river lamprey migrates upstream every spring to spawn in gravel beds.

The southern topeyed lamprey migrates upstream to spawn in the cool streams of southern Chile.