The Diver

Jade and striped icebergs. “When seawater at depths of more than 1,200 feet freezes to the underside of massive ice shelves like East Antarctica’s Amery Ice Shelf, it forms ‘marine ice.’ Enormous hunks of ice calve—or break off—from the ice shelf, creating icebergs. When one of these icebergs overturns, its jade underside is revealed. The wondrous color of this ‘marine ice’ results from organic matter dissolved in the seawater at those great depths,” explained Audubon Magazine. “Green icebergs are infrequently seen because their verdant bellies are underwater; it’s only when they flip over, a rare event, that their richly colored regions can be seen before they melt. Striped icebergs, perhaps even more scarce than jade bergs, are thought to form in one of two ways: either meltwater refreezes in crevasses formed atop glaciers before they calve icebergs (creating blue stripes), or seawater freezes inside cracks beneath ice shelves (creating green stripes).”

Photos of an exceedingly rare erythristic manta ray taken off the coast of Australia by free-diving photographer Kristian Laine. This ray was first seen in 2015 by  Ryan Jeffery, and has only been spotted a handful of times since. Skin scrapings were taken in 2016 to determine that this was a result of genetics, not a skin infection. Kristian told BoredPanda in an interview that the ray, along with several others, was courting a female.