The Australian brook lamprey (Mordacia praecox) is part of a group of primitive jawless fish. It’s up to 15 cm long, with rows of sharp teeth. Surprisingly, it doesn’t use these teeth to suck blood ...

For several years, the presence of Least Brook lamprey eels (Lampetra aepyptera), a sensitive species of non-parasitic freshwater lamprey, has been casually observed in tributary streams surrounding ...

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The reproductive biology of lampreys is of special interest given the group has retained many developmental features reminiscent of the earliest vertebrates. Herein I report spawning behavior in the ...

Lamprey are an ancient family (Petromyzontidae) of jawless fishes. They are truly unique, with long ribbon-like bodies, smooth skin with no scales, and beady eyes. But it’s their round toothy ...

A species of crayfish has been proposed to be added to Pennsylvania’s list of endangered species and two fish are planned to be removed from that list because they are no longer found in the state.

The mouth of a juvenile Australian brook lamprey. Credit: David Moffatt The Australian brook lamprey (Mordacia praecox) is part of a group of primitive jawless fish. It's up to 15 cm long, with rows ...

Scientists have confirmed the identity of an unusual, ancient and Endangered species of fish that is living in the coastal rivers of Queensland, about 1400 km north of where it was previously known to ...