This little blue sea creature is a Glaucus atlanticus, or blue dragon as some people call it. It is a sea slug and curiously ...

But this small slug will also take on colonies of floating cnidarians. This includes the Portuguese man-o-war, an open-sea colonial animal that is closely related to jellyfish and whose sting can ...

the creatures (scientific name Glaucus atlanticus) are venomous and have been seen washing up on Outer Banks beaches recently. “The venomous sea slug lives in the open ocean and occasionally ...