When a threat approaches, the nudibranchs will orient their finger-like cerata toward the threat and then fire off the nematocysts they’ve stored. Blue dragons, or Glaucus atlanticus ...

Nudibranchs, commonly known as sea slugs ... Glaucus atlanticus - also known as the sea swallow, blue angel or blue dragon - looks especially unusual. The cerata of this species are not on its back ...

Leafy Sea Dragon is a marine creature that looks like a floating plant. It has delicate leaf like appendages and can thrive ...

The Year of the Dragon is off to a fitting start. As Chinese communities rang in the Lunar New Year over the weekend, stunning and rare creatures of the sea known as blue dragons were starting to wash ...