THE BLUE DRAGON MOLLUSK OF THE SEA:
Glaucus atlanticus (common names sea swallow, blue glaucus, blue sea slug and blue ocean slug) is a species of small-sized blue sea slug. They grow up to 3cm in length and live in the temperate tropical waters found in East and South Coast of South Africa, European waters, the east coast of Australia and Mozambique.
G. atlanticus preys on other, larger pelagic
organisms such as the dangerously venomous Man o’ War and, given the opportunity, will become cannibalistic..