Pro underwater photographer Franco Banfi was the one who snapped the extremely rare photo while following a pack of sperm whales in the Caribbean Sea, near Dominica Island.
They suddenly stopped moving and went into a synchronized vertical rest. A behavior that was first documented only back in 2008, when a team of biologists from the UK and Japan drifted into a group of completely still sperm whales. After further studies, they found that this collective nap occurs for approximately 7 percent of the whale’s life, in short intervals of just 6-24 minutes.
Scroll below to see the surreal image among other amazing photos Franco captured while swimming with diver Sabrina Belloni among these humongous animals.
(Except for the headline, this story, originally published by Bored Panda has not been edited by SLM staff)