Professional photographer and polar guide, Piet van den Bemd, was flying a drone across the dark blue waters of the Antarctic when his camera caught sight of an emerging pattern, rising from the deep.
The unfurling coil of light blue bubbles created a shape on the ocean surface that looked remarkably like a Fibonacci spiral – the famous mathematical pattern that often appears in the natural world, from plant to animal life.
Only when the spiral was complete did van den Bemd realize what had made it.
From the center of the pattern, rose two gigantic mouths, wide open for feeding.
They were humpback whales.