The birdbeak dogfish (Deania calcea) is a dogfish shark of the family Centrophoridae found in the Pacific Ocean around Honshū, Japan, southern Australia, New Zealand, and Chile, and in the Atlantic Ocean from Iceland south to the Cape of Good Hope.

[3] A study published in the Journal of the Marine Biological Association of the United Kingdom evaluated the reproductive strategy of the female deep-water shark birdbeak dogfish.

This research article discovers that there is a close relationship that exists between Hg level of pregnant females and the Hg level of their embryos, which indicates that there is a transfer of mercury from maternal sources.

[4] With the rise of fisheries, the birdbeak dogfish is being consumed at higher rates.

However, there have been health risks associated with frequent consumption of female dogfish.