Every summer, something ancient and mysterious swims up from the dark and into Puget Sound dive logs. Bluntnose sixgill sharks are deep-sea giants with fluorescent blue-green eyes. In the open ocean, ...

How will the climate crisis affect one of the ocean’s fiercest predators? New research published Wednesday has examined what might happen to sharks’ highly specialized, flesh-cutting teeth. As carbon ...

Hexanchus Griseus by Ariana Wilson The ‘Cow shark’ consists of two species: the bluntnose sixgill and broadnose sevengill shark. The sixgill shark is a deep-water dweller with the widest ...