The deep blue Crystal Cave of Svmnafellsjvkull (CORR) in Iceland was created by the glacier from Vrffajvkull Volcano's icecap meeting the coastline. The deep blue color is due to centuries of compression removing air from the ice. via dailymail.co.uk Photo by Orvar Thorgeirsson #Vatnajvkull #Iceland #Crystal _Cave_of_Svmnafellsjvkull #Orvar_Thorgeirsson
Related to the jellyfish and corals, the beautiful and alien Siphonophore is actually a continuous chain of specialized polyps - individual animals that grow from one another in an organized colony. Some in the colony are devoted to feeding, armed with stinging cells to snag fish or invertebrates. Others are devoted to locomotion, propelling the whole group with a continuous pumping motion. Still others, of course, exist only to reproduce.
Multicolor Aurora Borealis